It is written by Todd The Impaler Leveck, a Certified Instructor with the Billiard Congress Of America. If you have not heard of this book yet... You soon will, as it is destined to become a classic... As well as a best seller In fact... Rich Housley, Editor and founder of Billiards Connection magazine says...Aiming On The Cutting Edge book is the most comprehensive book on aiming for pocket billiards ever written