Hey if you're a university professor in the US and make the mandatory textbook for your course:
- Latest edition, which means it's hard or impossible to get used
- A book that has no digital edition
- A book you don't bother requesting from the university library so they actually have copies of the last stupid edition
Then you're going to hell
("But what if the latest edition is necessary because of new information??" Then fucking print the new information and pass it around in class, this isn't hard. "What if the latest edition is just much better explained?" Then?? Do your job??? As an instructor??? Explain the thing in a better way??)
A good professor will plan a course around the cheapest, most commonly available edition of a textbook, and then supplement. But you'd better attend the lectures. You'd just better.
