Abstract: A method of producing an electronic book (e-book) including displaying a selection screen including pre-stored document data, when a selection of a plurality of document data is received through the selection screen, displaying at least one menu applicable to the selected document data, when a selection of a menu to produce an e-book from among the menus is received, producing the e-book and displaying an edit screen to edit the produced e-book, and, when the produced e-book is edited with the edit screen, producing the e-book including the plurality of document data according to the editing.

Abstract: An image forming apparatus that recognizes partitions in an external memory device connected to the image forming apparatus. The image forming apparatus includes an interface to connect an external memory device to the image forming apparatus, a partition counter to calculate the number of partitions in the connected external memory device, and a display unit to display the calculated partitions.

Abstract: An image forming apparatus and a method to print a plurality of files stored in a portable recording medium. The image forming apparatus to receive the files stored in the portable recording medium includes an interface unit to provide a communication interface with the portable recording medium, and a control unit connectable with the portable recording medium through the interface unit to control the interface unit to receive the files stored in one selected directory among directories of the portable recording medium through the interface unit. The selection of one of the directories takes place even without individually selecting to-be-printed files among the files stored in the portable recording medium. As a result, among the files stored in the selected directory, a plurality of printable files are simultaneously printed out, thereby providing convenience to users.