I purchase my textbooks online, which saves me at least 50%. This semester, I had my very first issue with a textbook I purchased. After purchasing the book, I realized the student trial version of the software wasn't going to work. The seller wasn't very agreeable about refunding my money, so I started the process of requesting a refund from Amazon. I was really stressing out because I couldn't complete any of my assignments for this class without working software. So I emailed my professor and told him about what was going on. He told me he had a book I could borrow and to come down to his office and pick it up the following day. Not only did he loan me a brand new copy of the book and software to use, but he also said he wanted me to use it for the ENTIRE SEMESTER. I was just in total shock that he would do that for me, which will allow me to get a refund for this book and be able to pocket the money instead of having to buy a new book.