The Book module makes it easy to create multi-page resources with a book-like format.

Previously created websites can be imported directly into the Book module. Books can be printed entirely or by chapter.
The book module allows you to have main chapters and subchapters, but it goes no deeper. In other words, subchapters cannot have their own subchapters, as the module is intended to be a simple resource for teachers and students.
The book module is not interactive. You can, however, link to choices, forums etc., from within a book. Also, Flash movies and other multimedia may be included in a book