Chopin – Waltzes for the Piano | Schirmer Library of Classics Volume 27 | 15 Romantic Period Piano Waltzes for Advanced Players and Music Enthusiasts | Classical Sheet Music Collection for Recitals
G. Schirmer, Inc. is an American classical music publishing company founded in 1861. In 1892, the firm inaugurated the famous yellow-covered Schirmer's Library of Musical Classics.
A very nice edition of the Chopin waltzes (also sometimes called "valses".) A small number of intermediate pieces but largely for the advanced student. I recommend the Schirmer edition if you are on a budget - the fingerings they give are typically very practical.