① CZERNY: 30 Selected Studies Notes written in the first piece. ② CZERNY: 100 Progressive Exercises Notes written in pieces 6-50. ③ HANON: The Virtuoso Pianist Notes written in pieces 1-23. ④ SONATINAS Notes written in pieces 1, 4-10. These items were used in piano lessons and have notes and stickers. Please consider purchasing if you understand that these are used items and have been stored at home.