I was super skeptical about buying books online due to the description of the books saying that there might be marks or signs of them being used, but I went ahead and brought them anyways. I'm quite surprise how these books are in great condition, they're better than what is said in the description of the books. I'm so glad that this was the case. I brought many books and I was happy with all of them. I will continue buying books online. They're cheaper and are in great condition!