One of the first things that I do when I was in college and the semester was over is that I would sell textbooks – anything book that I had bought for the semester I would sell back. And I am so glad that I did because if I were to try to sell them now they would be worth nothing because they would all be outdated. And when it comes to certain textbooks they are always being updated. If you think you will never use your books again and most people do not…then sell them as soon as you can so you can get the most for them.