This collection, supervised by Jiro Nakano, a leading authority on classical guitar works in Japan, faithfully reproduces the original Sor scores in modern notation. "Standard Edition Sor Guitar Collection 1: Sonatas" includes Sor's representative sonata works: Grand Solo Op. 14 Sonata Op. 15-2 Grand Sonata Op. 22 Grand Sonata No. 2 Op. 25 This book is considered an essential volume for guitar enthusiasts from amateurs to professionals. I purchased this sheet music over 20 years ago. It is almost unused, but due to aging, there are yellow stains on the inside of the cover. There is also some discoloration around the edges of the pages due to aging (not very noticeable). There is a corner fold on the back cover. However, the sheet music itself is clean with no discoloration. Overall, it is in good condition and will not affect performance. As this is a used book, please examine the photos carefully before purchasing. This sheet music is offered at a low price.