This is the best book ever written on how to practice at the piano! Most books list what skills are needed (scales, arpeggios, trills, etc.), but not how to acquire them. This book teaches how to solve technical problems, step by step. Learn practice methods, how to acquire technique and memorize hours of repertoire, sight reading, musical playing, relaxation, etc., and, most importantly, Mental Play in which you learn to play the piano in your mind.