Ambidexterity is a rare giftvery few people are born with it, but Joels book puts you on the road to achieving ambidexterity even though it may not be inborn. The exercises are extremely easy to readtheres only one staff line with notes above for the right hand, and notes below for the left hand. Rhythmic notation includes just eighth and sixteenth notes, and what you do with your two hands is one of 11 different ways to apply the exercises between your four limbs. Actually, you dont even have to be a drummer to play this bookanyone who can read rhythm can do it. In a real sense its a game book, and fun to play.