I recently took a class from the library on how to best keep your books in mint condition. There was so much information out there on how to keep your books in good shape that I did not know about. I did not realize the long term affects that bookmarks had on books or the key things to remember when putting books on the shelf. With all of these newly learned rules how am I to know if the books that I want to buy from an online book shop have followed these same guidelines for their books and I will be getting quality merchandise?