so the other day i was at a book store and noticed they carried a few training and other kinds of books for firearms. i flipped throu a few of them but didnt buy any. i also saw one on glocks. i cant remember the name of it but i remember it was VOL. 2. I guess what i'm getting to is. have any of you picked up books as these and they helped or just make for a good informative read? i am thinking about picking a few of them up but dont want to waste my money if its junk. i am planning on taking classes but knowledge never hurt anyone.