The book industry (I think) works like this:
1. Author writes book.
2. Publisher sells book to Amazon, B&N, Walmart, iBook store, etc
3. Author gets $1
4. Everyone else goes home laughing
Steven Frank wrote a book and is selling it for $2.99. He offers it in the Kindle store, but I chose the ePub version without DRM for the same price. I am happier (cheap price and unprotected file) and he’s probably making $2.50 after processing fees.