The disadvantage of some of Carl Czerny's collections of piano etudes is that there are too few etudes for the left hand. Their lack can be felt especially in the best and most popular collections.

However, Czerny duly appreciated the need for even technical development of both hands. To this end, and to complement other collections, he also wrote cycles of etudes designed specifically for the left hand. 24 Etudes op. 718 are most often used in pedagogical practice with the Opus 299 etudes.