Davenport: Thinkers' Press, 1987. — 205 p. — ISBN: 0-93865041-6.
It's amazing no other writers have pursued this concept more which is that to achieve high rates of chess mastery, one has to at least progress to the Class A stage. This book takes 30+ games from Class A players playing Class B players and some C players showing how and why the Class A player wins. This is an education in itself. Most chess books are written by Grandmasters or International Masters who use the games of elite masters for instruction.