These first 20 of the 60 piano studies of this set by C.L. Hanon are the most popular etudes ever written. Hanon's goal: "Preparatory exercises to acquire speed, precision, agility, and strength in the fingers…(and) flexibility of the wrists." The etudes enable students to focus on playing patterns with a relaxed hand while supporting the fingers with the hands and arms. They also make a wide range of finger patterns easy for pianists to recognize and execute when learning and accomplishi