I'm a big fan of Andrew Martin's teaching style. I make my living teaching chess in the public school system as well as through a program I devloped for teaching kids in jail. I find that Andrew Martin gets through to kids better than most Chessmasters because he is clear and concise as well as sounding like a normal person as opposed to many Masters who tend to overcomplicate explanations. I love the ABS of Chess Openings by Chessbase. Any thoughts on the subject?