Thank you very much for viewing. This is a trombone instruction book, Emory Remington's Warm-Up Exercises. - Title: Warm-Up Exercises for Trombone - Author: Emory Remington - Publisher: Accura Music I purchased this about 15 years ago. Because I used it frequently, the cover is quite dirty, and the staples in the binding may be rusty, potentially causing the binding to come apart suddenly. However, the music inside is clean without any markings, so I hope you can find value in it as a copy source or for scanning. It's a very good instruction book, so please incorporate it and make your daily warm-ups even better.