As a writer/self publisher, I would also caution against putting real books on here. All of the bookstores (Kindle/Apple/Nook, etc) frown on books being available anywhere off their bookstore cheaper than it is on theirs. This would not be something anyone looking to make residuals long term with their writing would participate in if I am understanding this correctly. Amazon has crawlers scouring the net constantly looking for books on their platform listed elsewhere cheaper.