This is a good book on Throwing. The author collected learning curve statistics that were very motivational in nature. If at first you don't succeed, try, try again. The wonderful thing about the book was the variety of things that were thrown. Get the book and open up some doors in your throwing skills.
I would hope the author is continuing writing good books of this nature and as an avid reader hope that a book would be written blunt thrown objects, and or other projectile launchers.