Up for sale is my own paperback copy of the DSM-5. It is 100% *authentic* - I know this because I bought it directly from the APA myself a few years back. I have got a lot of good use from it and it is ready for a new home, perhaps with a psychology grad student looking to save a few bucks. It is fully custom tabbed (I installed the tabs myself), slightly dog-eared and well used, with a crease on the cover and a small bit of water damage on the lower end, near the back (adds character, right?). I have blacked out my name inside the cover. I mention the authenticity issue because there are a gazillion fake DSMs out there. Amazon has themselves acknowledged this is a serious problem and they know 99% of them for sale on their site are fake - and *all* of them on eBay are fake, for sure. I researched this issue - counterfeit DSM's are apparently a serious problem. This is the real thing. I paid $160 when I bought it from the APA. The current edition (DSM-5TR) is $170 on the APA site - the ONLY way I would buy a new copy of the DSM, and that is exactly where this one came from. If it were in better shape I would sell it for $50. Yours for $30. The photos are an integral part of this listing. Please examine them closely to make sure the book is in acceptable condition before purchasing. If you do not buy it, please share this listing. Thanks! -Matt