During my freshman year at Georgia Tech I had two classes with text books written by the instructor. My chemistry teacher was one of the authors of textbook we

During my freshman year at Georgia Tech I had two classes with text books written by the instructor. My chemistry teacher was one of the authors of textbook we used. The other was my CS1311 class, but instead of a traditional textbook it had a plastic comb binding and was really inexpensive compared to my other books (I actually still have it sitting on my shelf - $17.50). Edit: Now that I look more closely at it that CS book was just a supplement to the actual textbook, which was written by the instructor.