I was not a CS major but I had a number of friends that were CS majors and one of the courses used a book written by the professor, who is also the department head. The book cost like $200-$300. It was a shitty rewrite of the Sun Java documentation with a few added exercises and some reworded bits.

Fucking racket. Also something something cheating and plagiarism is bad unless you're the head of an academic department.