My univeristy library would often have one or two copies of the current textbook on course reserve in the library. This meant that 1) you had to know where the course reserves were, 2) hope you could get it before one of the other 100-150 students also taking that course got it first, and 3) hope some dickhead didn’t just take it off the shelf and hide it in their study carrel or in a quiet corner of the library. Number 3 gets worse the higher the level of degree you are studying.

What do trees have to do with computers?