Plugin / themes which transforms a WordPress blog into “digital book”. The closest thing exists to this idea is iBooks Author. Too bad it only lives in Apple ecosystem. The idealistic result of this idea is to transform WordPress into iBooks Author for the web.
Some features I can think of:
– The end result should resemble the structure of a book: cover, table of content, chapters + sub-chapters, footnote, dll.
– Visually, i imagine it to look like qz.com. The left side is the inline scrollable table of content, the right side is the content.