The first book in the All-in-One My Piano series. A fun music learning material with stickers. Recommended for young children who are planning to attend a music class. Purchased to attend a seminar by the author, Mr. Ishiguro, and for教材 research. Only the first page used stickers (there is a tear about 3 cm at the bottom left). The stickers are "peelable and reusable," so they can be used repeatedly. The second book in the same series is also available. Thank you for looking.