The book is a single object—in a single window: t he reader should continuously and freely move back and forth through the text. Chapters should not be separated from each other by hyperlinks or other artificial barriers.
Why not just publish paper books? If we decided to publish paper books, we would have to: find money, set up logistics, and accept the loss of connection with the book.
Typical web document: Texts of documents and posts are not necessarily linear: they can be split into sections or structured by columns, color areas and sidebars.
We don’t want to make websites instead of books. To understand what a digital book should be, it’s worth trying to perceive it as an information format, not a physical medium.
Advantages of a book in web format: doesn’t require iPad or Kindle, you can actually design it, it’s easy to search, it’s connected with the author, it’s interactive.
The book is not designed for reading at a single sitting, but for several days or weeks. Therefore, the book should have a structure, reference tools and some mechanisms for gradual assimilation and learning.