Études is a one-act ballet choreographed by Danish dancer and choreographer Harald Lander to piano studies by Carl Czerny arranged for orchestra by Knudåge Riisager. It is considered Lander's most famous choreographic work and brought him international fame. The work premiered on 15 January 1948 at the Royal Danish Theatre in Copenhagen with the Royal Danish Ballet, with scenery and costumes by Rolf Gerard and lighting by Nananne Porcher.