Abstract: The present invention is directed to a book device corresponding to at least one narrative story, including a spine, at least three pages pivotably connected to the spine, a sound producing apparatus, and a plurality of switch elements which activate the sound producing apparatus to play desired audio segments corresponding to a particular story element. Each of the pages contains illustrative material, such as text and/or pictures, and at least one of the pages is partially transparent, so that illustrative material on subsequent pages is visible to the reader through the transparent portion of the page. In another embodiment, the illustrative material is not affixed to the pages themselves, but takes the form of inserts which may be removed and interchanged, with the book device able to determine which story corresponds to the particular inserts being used and play the desired audio segments corresponding to that story.

Abstract: A real time audio assisted instructional device includes a label and an audible instructional unit. The label, containing index of sound information, can be attached to a book or other object that is to be learned. The audible instructional unit can read the label and generate audible information for a real time instruction. Sound information, such as names, relative information of objects and music, are stored in a detachable memory unit of the audible instructional unit. This instructional device incorporates the objects and the sounds, makes a real-time audible instruction possible with any object or medium, and increase the fun and efficiency of learning.

Abstract: A talking book and a method of authoring a talking book is presented where the talking book includes a synthesizer, an audio system, a memory, a display, and switches for selecting pages and/or chapters of the talking book. The talking book is authored by a script that lists speech files, the sampling rate, and the chapter and page boundaries. Configuration tables and segment tables are generated from the script and these tables are assembled with a playback program to combined binary data stored in the talking book.

Abstract: A book constructed of foam is improved wherein a bendable, shape retaining material is used to enhance the user's enjoyment of the disclosed foam book.

Abstract: A print having attached audio data storage and method of providing same. A print, generated by an image processing apparatus, has an attached memory with recorded audio data related to the print, which memory allows contactless access to the data using an electromagnetic frequency signal. A transceiver communicates with a transponder that is attached to the print substrate and is integrally coupled to the memory. The transponder is capable of receiving a first electromagnetic frequency from the transceiver and deriving power and address information from the first frequency, then generating a second electromagnetic frequency in response, where the second electromagnetic frequency is characteristic of the recorded audio data stored in memory.

Abstract: A device suitable for use as a child's toy includes a housing having a window through which is visible a medium on which are displayed changing scenes. A plurality of lights are positioned behind the medium and selectively illuminated to provide animation effects. Different portions of the medium may be selectively illuminated as the scenes are changed in order to vary the animation effects. The medium may be in the form of an at least partially translucent scroll, on which is printed a series of different scenes and which may be moved by a motor, spring, or other winding mechanism arranged to advance the scroll so that a different complete scene appears in the window each time the scroll is advanced.

Abstract: A print media receiving unit is disclosed. In one embodiment, the print media receiving unit comprises a platform that includes a surface adapted to receive a print medium comprising a spine. The spine may be disposed in a spine receiving portion in the platform. A location detection system capable of determining a location of a selected region of the print medium may be associated with the platform.

Abstract: A novelty device assembly is provided. The novelty device includes an audio signal generator and a book. The audio signal generator is capable of being removably secured to the novelty device. The audio signal generator includes a memory to store data and a speaker to provide an audible signal. The book is separate from the audio signal generator and includes a plurality of pages having discrete printed information. Each page contains a contact capable of being detected by the audio signal generator. The pointer retrieves data from the memory corresponding to the selected page and converts it into an audible signal.

Abstract: The Christian learning tool is an educational toy having a base in the shape of an open Bible, the top surface of the base being divided into a left side and a right side. The left side has a cradle defined therein receiving a pair of praying hands attached to the base by a tether and having a plurality of apertures for emitting sound from a speaker. The right side has three sets of buttons disposed thereon, including a set of category selector buttons for selecting either the Ten Commandments or the Beatitudes, a set of ten topic selector buttons in the form of a telephone keypad for selecting one of the Ten Commandments or one of the Beatitudes for audio replay, and a third set of buttons for selecting audio replay of a story about either the birth or death of Christ.

Abstract: A method for and apparatus capable of generating a personalized activity publication includes the receipt of a publication profile from a requesting user. A lesson plan based, at least in part, on at least a subset of a plurality of information in accordance with the received publication profile is dynamically generated. Periodically, a targeted publication is assembled for delivery to the requesting user to satisfy at least a subset of the lesson plan generated from the publication profile.

Abstract: A method and kit for teaching disabled students, such as children with developmental delays and disabilities such as autism, through music. The method makes extensive use of an illustrated song book and individual sound recordings of appropriate songs with lyrics, and tying the pages of the song book with the individual sound recordings of the songs by the use of icons or graphic images, including icon cards, representing respective ones of the songs. The method permits the students to find the appropriate page in the song book for following along as the selected song is being played, while also permitting the students to have a choice in the selection of songs to be experienced. The method and kit also provide the teacher with suggestions of activities for engaging the children, such activities being specific to the selected song being played.

Abstract: A printed book has associated therewith certain electronically stored data in the form of images, sounds and/or supplemental text. Visual cues are provided to the reader of the book in the vicinity of text having associated electronically stored data. The electronic data is preferably stored in a remotely accessible server. A graphical user interface is provided for controlling access to the data stored in the server. When the reader of the book wishes to access data associated with a portion of the text, the reader uses a computer pointing device to select or manipulate indicia on the graphical user interface corresponding to the visual cue in the book. The server retrieves the appropriate data which is then presented to the reader as images, sounds and/or supplemental text on the reader's computer, thereby providing a multimedia enhanced reading experience.

Abstract: A multipurpose learning device having a picture book including a plurality of pages, wherein the pages turned in a top-to-bottom hinged direction instead of a side-to-side hinged direction, a memory unit having audio and video data stored therein, the memory unit being detachably connected to a touch board. A surface of the touch board is declined to a predetermined angle for enabling a user to easily position an electronic pen perpendicular to the touch board. Each sheet of the picture book includes a blank page and a picture page and picture information corresponding to a picture on one of the pages is displayed on a host device, such as a television. A user moves the electronic pen over a blank page which is positioned over the touch board, and a cursor is displayed on the host device at a position corresponding to the position of the electronic pen over the blank page and touch board.

Abstract: An interactive learning system is disclosed that includes a note-making facility, a mentor facility, and an editor facility as its major subsystems. The note-making facility allows the user to create notes while scanning through an electronic text file that is accessible from a suitable memory space. The mentor facility provides content-specific information in response to the selection of certain passages or quotations from the text file by the user. The editor facility provides generalized learning strategies and recommendations useful in the analysis of text and the preparation of a written report. The information provided by the editor facility is generalized, and hence is not specific to the current text file; in contrast, the mentor facility is content-specific, and furnishes the user with information that is specifically related to the text under review.

Abstract: The disclosed methods and apparatus relate generally to the electronics media industry, such as cable television (CATV), home shopping services, on-line computer services and computer memory applications. These methods and apparatus allow a user to access and make use of electronic media input and output devices by reference to and/or utilization of standard printed matter, such as magazines, textbooks, or any other printed matter that can be correlated to electronic media.

Abstract: A recording device that is coupled to a book. The recording device records, saves and plays back a plurality of discrete messages. An archival control disables and enables the device, thus permitting the user to ensure that no new messages will be accidentally recorded over existing saved messages.

Abstract: An image holder such as a picture album (10) includes a plurality of pages (14) that receive printed images (18). The pages (14) also have markers (20) placed thereon, with each marker corresponding to one of the images. A memory (25) stores audio segments associated with the respective images. A user may place the printed images in any order in the image holder. A controller (22) performs an initialization routine to match the image locations with corresponding audio segments for future playback. Once the initialization is complete, whenever a user selects a marker associated with an image, the audio segment associated with that image is played back.

Abstract: An educational toy comprises a soft toy (10) carrying a barcode scanner (20) for scanning a number of barcodes each individually associated with a visual message in a book (12). A decoder and audio device in the toy generate an audio message corresponding to that visual message in the book associated with the scanned barcode.

Abstract: A device for automatically locking a power button in a computer is to prevent a power button from operating by someone when the user uses a mouse. The device has a power button blocking part 100 installed between a power button 420, which moves forward and backward through a button receiving hole 410 of a computer main body 400, and a power switch 430, which is selectively turning on or off the power switch 420 depending on the pressing operation of the power button 420. The power button blocking part 100 blocks between the power button 420 and the power switch 430 when the cover 510 of the mouse 500 connected to the computer main body 400 is loaded thereon. The power button blocking part 400 is driven by a driving part installed in the mouse 500. The driving part provides power obtained from the power circuit 300 to the power button blocking part 100 when the cover of the mouse is loaded thereon. Therefore, the power button blocking part blocks between the power button and the power switch.

Abstract: An album (100) for storing a collection of image prints (94). At least one of the image prints comprises an index print (20) that includes a memory unit (30) integral with the print to define an audio print for storing audio data. The album includes a print holder (90) having respective front and back covers and a plurality of pages (92) configured for mounting the collection. An audio unit (40) is mounted to the print holder. The audio unit includes a housing (42) and an image print processor (60), when the audio print is coupled to the audio unit, to communicate with the audio print memory unit and selectively process audio data related to the collection.

Abstract: A voice book system includes a sound generating device equipped with at least a voice book. The voice book includes a front cover, a back cover and a plurality of page sheets. The voice book further contains an information storing device for storing a plurality of sound messages with respect to the content of each of the page sheets and a book connector for electrically communicating the information storing device with the sound generating device.

Abstract: An information reproduction method uses a first storage medium and a second storage medium. For the method a plurality of pieces of information and retrieval information are recorded in one of the storage media. The retrieval information is used to retrieve and reproduce the pieces of information with a reproduction apparatus, and information related to the information recorded in the first storage medium is recorded on a plurality of pieces of paper as the second storage medium. At first the pieces of information recorded in the first storage medium loaded in the reproduction apparatus are retrieved based on the retrieval information recorded in the first storage medium, subsequently the information retrieved from the first storage medium as output are displayed, and the information recorded in the second storage medium is retrieved based on the displayed information representing the location of the information recorded in the second storage medium related thereto.

Abstract: An apparatus for producing audible sounds in response to visual indicia in the nature of an electronic book. The electronic book is constructed from a plurality of leaves which may be formed from a continuous accordion folded sheet or individual modular folded sheets joined back-to-back to form the pages of the book. During construction, a spacer is internally provided within each leaf to create at least one internal passageway opening at one end of the leaves at a location forming the book's spine. An electronic circuit having pressure sensitive switches and conductive paths is provided on the surface of a dielectric substrate using conductive ink. The switches are arranged on elongated members which are inserted into a respective internal passageway within the leaves of the book. By activation of a switch by pressure applied to visual indicia on the leaves, audible sounds are produced by an on board electronic module.

Abstract: An electronic book comprising a plurality of leaves, each leaf comprising pages of printed material bound at one edge to form a spine, with electrical circuits formed in each leaf. A common electronic circuit such as a speech generator and/or controller cooperates with the electrical circuits on each of the various pages, connected to the electrical circuits in the leaves through conductive paths through the spine of the book. The electrical circuits in the leaves include electrical elements such as switches, and sensory output devices (e.g., thermochromic devices, light emitting diodes, thermo-olfactory devices, electrochromic devices, and the like). The electrical elements are associated with particular portions of the printed material so that the particular portions can be selectively highlighted or emphasized (e.g., designated by actuation of a visual or olfactory device and/or text read).

Abstract: This invention relates to a phonics and reading teaching device which depicts an arrangement of indicia representing letters of the alphabet and their associated phonemes. Selection of individual indicia causes the device to generate an audio signal or other response. The audio signal is generated by an output in the form of a speaker, and a processor is provided for controlling the operation of the device. In one mode of operation, the processor causes the speaker to produce a prompting signal indicating a word, and in response to each sequentially correct selection of a letter in the word, to produce a signal representative of a phoneme associated with the letter. The phoneme produced is dependent on the position of the letter in the word. When all of the letters in the word have been selected in correct order, the processor causes the speaker to produce a signal representing a pronunciation of the word or other affirmative acknowledgement.

Abstract: An electronic book is provided including a plurality of PCMIA cards each with read only memory having a unique text permanently stored therein. Further provided is a portable unit comprising at least one speaker for allowing the transmission of audio signals upon the receipt thereof, a PCMCIA interface slot formed in the housing for allowing the downloading of the text of the PCMCIA card, and a speech processor/synthesizer connected to the speaker for transmitting audio signals thereto upon the receipt of text stored in the PCMCIA card. Such audio signals are representative of speech corresponding with the text. Further provided is a control mechanism adapted to download the text located within the PCMCIA card via the PCMCIA interface and further transmit the same to the speakers and the display whereby the audio signals are continuously transmitted and a user may view the text via the display.

Abstract: A system and method for augmenting a printed text with electronically stored data in the form of images, sounds and/or supplemental text. A printed book contains a plurality of pages of text. An electronic virtual book emulates the appearance of the printed book. The virtual book may only be accessed with a password that is contained in the printed book. The text of the book is augmented with information linked to the virtual book, including, for example, vocalization of the text of the book.

Abstract: A printed book has associated therewith certain electronically stored data in the form of images, sounds and/or supplemental text. Visual cues are provided to the reader of the book in the vicinity of text having associated electronically stored data. The electronic data is preferably stored in a remotely accessible server. A graphical user interface is provided for controlling access to the data stored in the server. When the reader of the book wishes to access data associated with a portion of the text, the reader uses a computer pointing device to select or manipulate indicia on the graphical user interface corresponding to the visual cue in the book. The server retrieves the appropriate data which is then presented to the reader as images, sounds and/or supplemental text on the reader's computer, thereby providing a multimedia enhanced reading experience.

Abstract: An album (50) for photographic prints includes a front cover (52); a back cover (54); a binder member (56) attached between the front and back covers; an elongated, partially cylindrical shell member (78) attached to the binder member, the shell member having opposite ends (80, 82) and opposed longitudinal edges (90, 92), the longitudinal edges being attached to the binder member; and at least one album page (94) movably attached to the shell member, the page having opposed portions (96, 98) which extend around the opposite ends, whereby the page can be moved circumferentially around the shell member from a first position near one of the covers to a second position near another of the covers. The album may include a sensing device (30, 32) to detect movement of the at least one page and a produce a signal; and a system (124-160), responsive to the signal, for playing back sound messages or displaying text messages, or both, associated with photographic prints carried by the at least one page.

Abstract: An information reproduction method uses a first storage medium and a second storage medium. For the method a plurality of pieces of information and retrieval information are recorded in one of the storage media. The retrieval information is used to retrieve and reproduce the pieces of information with a reproduction apparatus, and information related to the information recorded in the first storage medium is recorded on a plurality of pieces of paper as the second storage medium. At first the pieces of information recorded in the first storage medium loaded in the reproduction apparatus are retrieved based on the retrieval information recorded in the first storage medium, subsequently the information retrieved from the first storage medium as output are displayed, and the information recorded in the second storage medium is retrieved based on the displayed information representing the location of the information recorded in the second storage medium related thereto.

Abstract: In accordance with this invention, a remote control for an interactive media can include a printed publication and/or a storage media and/or a data button. One embodiment of a remote control includes a printed publication (such as a book, magazine or a catalog) and one or more buttons physically attached to the printed publication to allow users to remotely control use of associated electronic content by a host device. Another embodiment of a remote control has a housing capable of removably holding a storage media encoded with electronic content associated with a button of the remote control. Yet another embodiment of a remote control has at least one data button which permits the user to select the data to be displayed by the host device. An autostart driver in the host device detects insertion of a storage media into a peripheral and automatically starts an application. The application interprets button codes transmitted by the remote control and displays the results or initiates other events.

Abstract: A talking electronic learning aid is operative for requesting one or more responses from the operator, receiving responses from the operator and then automatically adjusting the level of difficulty of subsequent requests dependent upon the prior responses of the operator. The device consists of an electronic memory for storing a plurality of data sets, a speech synthesizer, a keyboard input device, and a micro-controller for controlling operation of the device. Each of the data sets includes speech data from which requests for operator response are derived, and further includes corresponding control data related to the appropriateness of operator responses to the requests. Each of the data sets preferably reflects a different level of intellectual difficulty.

Abstract: Methods and apparatus of integrating multimedia materials with didactic printed materials present selected relevant multimedia material in response to the sensing of control codes embedded in context sensitive and/or content sensitive didactic printed material. A store of multimedia information is created, and the store is correlated to related context and/or content sensitive didactic printed material. The store is categorized to transmit certain categories of the stored information from the store to a multimedia display in response to the reception of certain input signals obtained from certain codes embedded in the didactic printed material. The printed didactic material controls the display of the multimedia material. Either preexisting didactic printed material or currently created didactic printed material can be efficiently and economically integrated with multimedia materials to display certain selected multimedia materials at sensitive places of the printed materials.

Abstract: An universal multimedia book interfacing device is disclosed in this invention. This device is used for operation with a multimedia book. The interfacing device includes a first adapting connector provided with connection compatibility for electrically connecting to several different multimedia books. Each multimedia book is provided with user interfaces for accepting user input signals therein and delivering user output signals therefrom. The universal interfacing device further includes a second adapting device provided with connection compatibility for electrically connecting to a data storage containing data relating to the multimedia books. The universal interfacing device is provided for electrically transmitting the user input signals received from one of the multimedia books to pre-designated locations in the data storage for generating user output signals and for electrically transmitting the user output signals to the multimedia books.

Abstract: A learning aid is provided which allows the user to selectively mute one part of a prerecorded multipart drama and substitute his or her voice for that muted part. A recorded copy of a composite of the unmuted prerecorded portions of the drama, the user's voice, and additional sound effects may thus be created. A voice sensitive microphone allows the period of time for the user's part to be flexibly varied and prerecorded control signals provide visible cues to the user that the part selected is imminent.

Abstract: A document interpreting system comprises a book having the co-ordinate array of a graphics tablet embodied in it, conveniently in the front cover and rear cover thereof, an electronics module comprising a microcontroller connected to the co-ordinate array, a pointer for pointing to arbitrary areas on an open page of the book, and a speech circuit for causing speech or other sounds to be emitted corresponding to the area of the page which is being pointed to.

Abstract: An interactive electronic graphics tablet is provided which utilizes two windows, one large window for the insertion of a standard sheet of paper or other material allowing the user to draw images on the paper and another smaller second window. A cartridge having various icons, such as animal images, is clicked into place in the smaller window. The device is configured such that the paper overlays a touch sensitive pad. The operation of the present invention allows the user to assign any cell of the drawn page corresponding to XY coordinates to particular sounds correlated to the icons in the smaller second window by touching respective locations and icons.

Abstract: An electronic storybook is disclosed that allows a child to not only interact with the storybook by drawing characters that depict or change a scene, but also to allow the child to record his/her verbal comments, interpretations and impressions while the scene is being created so that the full story told by a child may be captured in an audio-visual manner.

Abstract: A method of displaying a self-reading electronic child's book on a display medium that displays a sequence of indicia, such as words, and having associated with the first indicia or word a visual indicator that may be associated with a cursor moved by a child to audibilize the indicia or word associated with the visual indicator and automatically cause the visual indicator to move under the next indicia or word in sequence to enable a book to be read by a child.

Abstract: An interactive learning device in a laid open book format for toddlers and preschoolers, having a plurality of advantageous features. The device has keys in the form of raised letters of the alphabet that are depressed to make a voice processor circuit recite the letters. The learning device receives a card that spells out a word, and the speech processor circuit, upon the depressing of the keys that correspond to the letters constituting the word, pronounces the word phonetically, both letter by letter and by the entire word. The device provides numerous feedback mechanisms for reinforcing learning, and is of a portable, compact shape.

Abstract: An electronic book includes a cover, an array of membrane switches disposed in a membrane switch assembly attached to the cover, and a plurality of pages attached to the cover, each of the pages having on a first surface thereof an indicia located directly over one of the switches, respectively. An electronic module is attached to the cover and is electrically connected to the array of switches. The electronic module stores a plurality of addressable sound sequences. The membrane switch assembly includes a first layer of flexible sheet material, and a layer of switch electrode conductors on the first layer of flexible sheet material defining a plurality of pairs of switch electrode conductors, each pair including a first electrode conductor and a second electrode conductor, and a plurality of conductors for connecting the electrode conductors to the electronic module.

Abstract: An interactive game board or pages of interactive paper are attached to a platform designed to channel power to the game board/interactive paper and to receive signals therefrom. A transmitter unit that is removably attached to the platform provides power to the platform and transmits signals from the game board/interactive paper to a multimedia source, such as a computer or a CD-ROM player. Signals are generated at the interactive game board and interactive paper by means of touch pads that each permit completion of one of a plurality of distinct electrical circuits. Play pieces capable of generating a unique signal through the game board are also provided.

Abstract: An apparatus for producing audible sounds in response to visual indicia in the nature of an electronic book. The electronic book is constructed from a plurality of leaves which may be formed from a continuous accordion folded sheet or individual modular folded sheets joined back-to-back to form the pages of the book. During construction, a spacer is internally provided within each leaf to create at least one internal passageway opening at one end of the leaves at a location forming the book's spine. An electronic circuit having pressure sensitive switches and conductive paths is provided on the surface of a dielectric substrate using conductive ink. The switches are arranged on elongated members which are inserted into a respective internal passageway within the leaves of the book. By activation of a switch by pressure applied to visual indicia on the leaves, audible sounds are produced by an on board electronic module.

Abstract: A portable toy having an audio signal producer is provided with a book. The book has a plurality of numbered pages containing parts of a story. The toy is provided with a plurality of pressure switches designating different pages of the book. When a particular pressure switch is depressed, the text of the corresponding page is read aloud through a speaker provided in the toy.

Abstract: In accordance with this invention, a remote control for an interactive media can include a printed publication and/or a storage media and/or a data button. One embodiment of a remote control includes a printed publication (such as a book, magazine or a catalog) and one or more buttons physically attached to the printed publication to allow users to remotely control use of associated electronic content by a host device. Another embodiment of a remote control has a housing capable of removably holding a storage media encoded with electronic content associated with a button of the remote control. Yet another embodiment of a remote control has at least one data button which permits the user to select the data to be displayed by the host device. An autostart driver in the host device detects insertion of a storage media into a peripheral and automatically starts an application. The application interprets button codes transmitted by the remote control and displays the results or initiates other events.

Abstract: An audio-book player includes a member capable of indicating to a blind person that a recording medium is loaded in or unloaded from the body proper. The audio-book player, which reproduces written data recorded on a recording medium as voice, includes a body proper into which the recording medium can be unloadably loaded and a member for identifying a loading state, in which the recording medium is loaded in the body proper, and an unloading state, in which the recording medium is unloaded therefrom. With this structure, the identifying member identifies the states by changing its tactile impression, so that blind persons can understand the states wherein recording medium is loaded in or unloaded from the body proper.

Abstract: In accordance with this invention, a remote control for an interactive media can include a printed publication and/or a storage media and/or a data button. One embodiment of a remote control includes a printed publication (such as a book, magazine or a catalog) and one or more buttons physically attached to the printed publication to allow users to remotely control use of associated electronic content by a host device. Another embodiment of a remote control has a housing capable of removably holding a storage media encoded with electronic content associated with a button of the remote control. Yet another embodiment of a remote control has at least one data button which permits the user to select the data to be displayed by the host device. An autostart driver in the host device detects insertion of a storage media into a peripheral and automatically starts an application. The application interprets button codes transmitted by the remote control and displays the results or initiates other events.

Abstract: A light sensitive switch for the activation of an alerting circuit (70) to be used as an electronic alerting device (50). Alerting device (50) may be used in publications such as a magazine (78) or book (94) to enhance the printed material by audio visual and/or mechanical vibration means. A photosensor (52) is used to detect ambient light when the publication is opened to an activation page (86) where the enhancement is located. Photosensor (52) switches on a transistor (66) when exposed to light, which in turn switches on alerting circuit (70). Alerting circuit (70) may consist of an audio transducer (74), a lamp (76), a motor (128), a solenoid (136), a mechanical vibrator or any combination of these. Pages are used to block ambient light from photosensor (52) when the publication is closed, thus turning off alerting device (50).

Abstract: An album includes a plurality of pages and another portion such as a front and/or back cover, or a binder. A plurality of magnets are positioned at respective relative locations on one of the album portion or the plurality of pages. A plurality of magnetic field sensor means, such as Hall effect sensors, are positioned at respective relative locations on the other of the album portion or the plurality of pages which substantially match the respective locations of the plurality of magnets for sensing the position of each page relative to the other portion.

Abstract: A method of displaying at least one reading metric in an electronic book includes reading machine-readable data from a machine-readable storage medium installed in the electronic book. The machine-readable data is representative of text of a book. At least one page of the text represented by the machine-readable data is displayed using the electronic book. A reading pace of a user is monitored over the at least one page, and the reading pace is displayed by the electronic book. An amount of the book which can be read at the reading pace during a remaining powering time for a battery which powers the electronic book can also be displayed. An estimated completion time for a portion of the book can be calculated and displayed based on the reading pace.