Currently, books need to be 20,000 words or less.
NOT CURRENTLY ACCEPTING PHYSICAL COPIES (May 17, 2018)
Disclaimer: As of 2018, I became an Amazon affiliate, which means that I might get a drop in the bucket if you click on a link in one of my reviews. However, I never have and never will charge authors for reviews. I do not accept payment of any kind from authors! A free copy of the book in exchange for the review is all I will ever accept.