This is the ONLY scale book you’ll ever need! It shows scales and modes in nearly every position possible, it also has sweeping patterns! And if you’re a keyboard hack like I am, it gives you the scales for keyboard also. Save yourself a lot of time and money buying scale books, you only need one..this is it! There’s a theory section in the beginning of the book, don’t skip this! It will help you understand how best to use this book. Once you’ve read that, then you can use it as a reference book. This is a great tool if you like recording also, pick the scale and key you want to use, it’s that easy. Easily best book for it’s price, and complete! 5 stars !⭐️⭐️⭐️⭐️⭐️