Well I'm certainly not going to read it

 " Textbooks: Why pay $200 dollars for a book you are only going to use to flatten the papers it crinkled in your backpack?"

 "[Why pay $200 for a book that you are only going to use to] improve your posture[?]"

 "...or to get a good angle when you don't have a camera"

PS. There were 50 pictures that turned out worse than those.
PS. PS. I didn't have enough books. The top one is my sister's. She doesn't know I used it; don't tell her.