The majority of works by Czerny are confusing to most Piano academics. Out of these, the following are still the classics: Op. 139, 261, 299, 335, 337, 355, 365, 453, 553, 599, 636, 718, 740, 755, 802, 821, 823, 834, et 849. Each one of these volumes contains numerous exercises, some contain more than a hundred. It is of course impossible for aspiring pianists to study them all, and it is difficult for Piano teachers to sort them out and organise them into the ones that could be the most interes...