Authoring content for digital books

摘要: This disclosure describes systems, methods, and computer program products for authoring content digital books. In some implementations, a single graphical user interface (GUI) is presented that allows an author to design layout the book, including editing text inserting various types of interactive elements in text. The GUI functions as both book tool word processor facilitate building book. relative page location inserted widgets can be determined by user-selectable anchor point placed within An outline view created based on hierarchical structure paragraph styles applied provide hybrid glossary index allowing create manage