This is the best Bookman's in the Phoenix area. Just a huge selection of books, and unlike the corporate competition you never know what you're going to find. This can be both awesome and frustrating, but always fun. You also gotta love the piles and piles of used magazines, the stockade of vintage video games, and the old D&D games. You could easily come out of here ready for junior high in 1989.
But obviously there's a lot for more adult tastes as well. I particularly love browing the religion and fiction sections. Those seem particularly well stocked. It's a real nice stop for a quiet night. Walk around for an hour or two, get a nice pile of books, cozy up in one of those quiet corners on a comfortable couch or chair and go through 'em.