Abstract: An electronic book system provides interfaces particularly suited to students' use of textbooks. User-controlled content is associated with portions of an electronic book. A study guide corresponding to at least some of the portions with associated user-controlled content is generated. The user can navigate between portions of the study guide and the corresponding portions of the electronic book.

Abstract: An electronic book system provides interfaces particularly suited to students' use of textbooks. Annotations are displayed and hidden using specific gestures and through selective movement of the reader as sensed by its accelerometer. Motion of the electronic book reader below a threshold speed causes a change in display of user-selected content in a first manner and motion above the threshold speed causes a change of display in a second manner.

Abstract: An electronic book system provides interfaces particularly suited to students' use of textbooks. A finger press on a touch screen produces a contextual menu with user choices that relate to where the finger was pressed or what the user was recently doing with the book. A student provisionally navigates through a book by a specific gesture which, when it stops, returns the user to the previous position in the book. Annotations are displayed and hidden using specific gestures and through selective movement of the reader as sensed by its accelerometer.

Abstract: A portion of an electronic book is displayed and a selection of a position within the portion is received. The content of the electronic book is analyzed to determine an amount of whitespace that corresponds to the selected position. In response to the determined amount of whitespace being greater than a threshold amount, a user interface for providing inscription data is displayed. Inscription data is received and stored in association with an indication of the selected position.

Abstract: A portion of an electronic book is displayed and a selection of a position within the portion is received. The content of the electronic book is analyzed to determine an amount of whitespace that corresponds to the selected position. In response to the determined amount of whitespace being greater than a threshold amount, a user interface for providing inscription data is displayed. Inscription data is received and stored in association with an indication of the selected position.

Abstract: An electronic book system provides interfaces particularly suited to students' use of textbooks. A finger press on a touch screen produces a contextual menu with user choices that relate to where the finger was pressed or what the user was recently doing with the book. A student provisionally navigates through a book by a specific gesture which, when it stops, returns the user to the previous position in the book. Annotations are displayed and hidden using specific gestures and through selective movement of the reader as sensed by its accelerometer.

Abstract: An electronic book system provides interfaces particularly suited to students' use of textbooks. Annotations are displayed and hidden using specific gestures and through selective movement of the reader as sensed by its accelerometer. Motion of the electronic book reader below a threshold speed causes a change in display of user-selected content in a first manner and motion above the threshold speed causes a change of display in a second manner.

Abstract: An electronic book system provides interfaces particularly suited to students' use of textbooks. User-controlled content is associated with portions of an electronic book. A study guide corresponding to at least some of the portions with associated user-controlled content is generated. The user can navigate between portions of the study guide and the corresponding portions of the electronic book.

Abstract: An electronic book system provides interfaces particularly suited to students' use of textbooks. A finger press on a touch screen produces a contextual menu with user choices that relate to where the finger was pressed or what the user was recently doing with the book. A student provisionally navigates through a book by a specific gesture which, when it stops, returns the user to the previous position in the book. Annotations are displayed and hidden using specific gestures and through selective movement of the reader as sensed by its accelerometer.

Abstract: An electronic book system provides interfaces particularly suited to students' use of textbooks. A finger press on a touch screen produces a contextual menu with user choices that relate to where the finger was pressed or what the user was recently doing with the book. A student provisionally navigates through a book by a specific gesture which, when it stops, returns the user to the previous position in the book. Annotations are displayed and hidden using specific gestures and through selective movement of the reader as sensed by its accelerometer.

Abstract: An electronic book system provides interfaces particularly suited to students' use of textbooks. A finger press on a touch screen produces a contextual menu with user choices that relate to where the finger was pressed or what the user was recently doing with the book. A student provisionally navigates through a book by a specific gesture which, when it stops, returns the user to the previous position in the book. Annotations are displayed and hidden using specific gestures and through selective movement of the reader as sensed by its accelerometer.

Abstract: An electronic book system provides interfaces particularly suited to students' use of textbooks. A finger press on a touch screen produces a contextual menu with user choices that relate to where the finger was pressed or what the user was recently doing with the book. A student provisionally navigates through a book by a specific gesture which, when it stops, returns the user to the previous position in the book. Annotations are displayed and hidden using specific gestures and through selective movement of the reader as sensed by its accelerometer.

Abstract: An electronic book system provides interfaces particularly suited to students' use of textbooks. A finger press on a touch screen produces a contextual menu with user choices that relate to where the finger was pressed or what the user was recently doing with the book. A student provisionally navigates through a book by a specific gesture which, when it stops, returns the user to the previous position in the book. Annotations are displayed and hidden using specific gestures and through selective movement of the reader as sensed by its accelerometer.

Abstract: An electronic book system provides interfaces particularly suited to students' use of textbooks. A finger press on a touch screen produces a contextual menu with user choices that relate to where the finger was pressed or what the user was recently doing with the book. A student provisionally navigates through a book by a specific gesture which, when it stops, returns the user to the previous position in the book. Annotations are displayed and hidden using specific gestures and through selective movement of the reader as sensed by its accelerometer.

Abstract: An electronic book system provides interfaces particularly suited to students' use of textbooks. A finger press on a touch screen produces a contextual menu with user choices that relate to where the finger was pressed or what the user was recently doing with the book. A student provisionally navigates through a book by a specific gesture which, when it stops, returns the user to the previous position in the book. Annotations are displayed and hidden using specific gestures and through selective movement of the reader as sensed by its accelerometer.

Abstract: An electronic book system provides interfaces particularly suited to students' use of textbooks. A finger press on a touch screen produces a contextual menu with user choices that relate to where the finger was pressed or what the user was recently doing with the book. A student provisionally navigates through a book by a specific gesture which, when it stops, returns the user to the previous position in the book. Annotations are displayed and hidden using specific gestures and through selective movement of the reader as sensed by its accelerometer.

Abstract: Methods and systems for optimizing multimedia content or a display of the media content in accordance with an optimal or ideal picture are disclosed. Different content versions that are optimized for different display devices can be remotely generated and transmitted to a receiver connected to the display device. In addition, sets of parameter display settings that are optimized for different display devices can be transmitted to the receiver to permit the display of an optimal picture for multimedia content. Moreover, a description or indication of display device parameters can be transmitted to a remote server for use in the generation of the different versions of content or different sets of parameter display settings.