Former graduate advisor used to assign his books almost every year. He used to publish superficial travel guide sized books as his ingenuity went away with age. He recycled some old stuff and blended it with his student's dissertation research. I didn't know that some of the stuff we were assigned to read were stolen materials until he took ours and published in another small idiotic book. Now I see the practice of assigning one's own book (unless it's high quality) a rather inappropriate form of forced sales. I remember (with disgust) the advisor going around the class making sure everyone bought one of that crappy book of his and offering to sign his autograph on them.
You seem to have had a lot of bad luck with advisors and department chairs stealing work.