I purchased the book "Corrections in the 21st Century" for a college class that I am taking the book is now in it's fifth edition and I was sent the 2nd edition and charged close to 50 dollars for it when I showed it to my professor she told me that book was now selling for 10 dollars and that I had gotten ripped off. This was a very bad experience and I will never purchase from this particular retailer as they are not honest.