Textbooks

Summer term exams begin today for the university students I live with. These are the text books they study. Professors make the books themselves and stores like this copy them in giant quantities. The books are usually between 50 and 100 pages and stapled along the left a couple of times. The books normally cost between $1 and $3 US dollars, which is crazy to me considering it wasn't uncommon for me to pay over $100 per book when I was in university in the States.