Czerny, Carl: The School of Velocity. For Piano. Op. 299. Volume II (junior, senior, average level)
At age fifteen, Czerny began a very successful teaching career. Basing his method on the teaching of Beethoven and Clementi, Czerny taught up to twelve lessons a day in the homes of Viennese nobility. His notable students included Sigismond Thalberg, Theodor Leschetizky. Ferenz Liszt. who studied with Czerny sonce 9 year old, was his most prominent pupil.