Ainsley paperback book cover - READY TO SHIP! Paperback book cover are a great gift idea for someone who has everything. It will protect your paperbacks and even hide the covers of those books that you dont want others to know you relish reading. A great gift for teachers and book lovers of all ages. These reusable fabric paperback book covers are made to be used on mass market paperback books measuring in thickness from 0.75 up to 1.5 thick. Mass market paperbacks typically measure 4.5 wide...