A professor at my school was known to sell his own books as mandatory material to pass his class, with exams aimed more at the content of the book than the actual content seen in class.
Two years ago, his last book released with a digital version only. He put it on a platform full of DRMs and is now renting it to students. Like, you pay it for one semester through an online shop, and then you lose access to it. He was apparently also checking during the exams that everybody had a legal version on their computers.
I honestly can't understand why it's legal and authorized.

[–] Toribor@corndog.social 6 points 1 year ago* (last edited 1 year ago)

Yeah that is some serious bullshit.

The professors I had that taught out of their own book said that we could buy it from the bookstore, buy a printed copy directly from them at cost for ~$30 (printed on regular copy paper in a three ring binder), print it yourself or just use the digital copy for free.

It's ludicrous to me that there are professors out there just bilking students for as much as possible. That being said I paid a $300 studio fee for the same class and I still had to buy everything myself.