Text is arranged on Triangle Books in the landscape orientation because the book itself is made in landscape. Text can be arranged in two different ways. The most popular is that used for a back spine design with a Page Holder, in which two pages are viewed simultaneously. In this method, text is arranged as on a wall calendar, thus showing two pages, one above the other. This is the best method for sophisticated books, especially those that require search capability. In such cases, users may need to refer often to back matter, as with textbooks.
When one page is viewed at a time, thus without using a Page Holder, text is arranged in what we call “half-and-half.” That is, the first half of the book’s content is on the frontside of the sheets, and the second half of the book’s content is on the backside of the sheets. When page 1 has been read, the user rotates that sheet to the other side of the propped structure to read page 2 on the frontside of the second sheet. So, in a 300-page book, the frontside of the first sheet is page 1, and the backside of this first sheet is page 300. When the user has read pages 1-150, all of the sheets have been rotated to the other side of the propped structure. The user then turns the structure 180 degrees to begin reading page 151. To help users know better where they are reading in this book design, we suggest the page numbers of the second half of the book be placed in gray-colored squares or the like.
To sum, text is arranged like a wall calendar when a Page Holder is used, and thus two pages are viewed at one time, or text is arranged “half-and-half” when a Page Holder is not used and thus only one page is viewed at a time.