2Patterns for Improvisation by Oliver Nelson is one of the world's most popular patterns books---many jazz greats have fond memories of practicing from this book! It contains an exhaustive collection of improvisational jazz patterns in various meters and feels, and comments and suggestions by the author, a legendary composer, arranger, conductor, and instrumentalist. This tremendous resource helps spell out some of the basic building blocks of the jazz language and is regarded by many jazz teachers as one of the essential texts for their students.