There's a lot of different ones of course... off the top of my head: No more Mr Nice Guy by Robert Glover. I also like Personal development for smart people by

There's a lot of different ones of course... off the top of my head: No more Mr Nice Guy by Robert Glover. I also like Personal development for smart people by Steve Pavlina. Tom Butler-Bowdon has a series of books that summarize all the major works in psychology/self help/prosperity/success/etc. Those are a good way to get up to speed and learn what's out there in the genre.