Electronic display device, electronic display method, electronic display program, and recording medium

An electronic display device capable of displaying content written horizontally and written vertically in an electronic display device having a plurality of display screens. The electronic display device includes a plurality of display screens that are bound and that can be opened like a book, includes a content storage unit storing content to be displayed on the display screens, includes a content reading unit reading the content from the content storage unit, includes an opening direction recognizing unit recognizing a first opening direction or a second opening direction of the content on the display screen, and includes a display control unit arranging and displaying the content based on the first opening direction or second opening direction of the content.