There are two parts to this book.Part one contains detailed information about the 'Bebop scales'.'The bebop dominant scale' T he bebop major scale' and 'Bebop solo'.Part two is about other scales and their uses.It teaches you about the 20 public domai n whole-tone patterns and 26 public domain diminished patterns.There are various examples and diagrams for you to follow .Ove rall it is a very informative book which is a must for anyone who wants to learn about Bebop.