I have read lots on book design over the last few months, but today I felt out of sorts and needed a refresher because I’m in the middle of formatting a book for print. When I typed in my search terms, I ended up at several different places, until I found this one and settled in. The site is full of good information on book design and typography, and I enjoyed reading it immensely.
Here’s the link again: http://theworldsgreatestbook.com/book-design-part-1/
I loved the articles I read, and I feel like I picked up a lot of good information.