Thousands of trumpet players since the early 1990's have used this Daily Routine book to improve their trumpet playing. It's a book of seven different trumpet warm up routines for seven different skill levels. Those skill levels range from beginner to professional. The skill levels make it easy to "graduate" from one to the next. They also make range limiting a new possibility. If you are unfamiliar with range limiting, then we encourage you to read Eddie Lewis' book titled One Range: A Trumpet Chops Strategy Guide.