There is no need to buy a finger-playing book. I bought a copy of Atao's Secret Book 2 before, but I didn't practice it well. First, the music is not my favorite. Second, Atao's books are not textbooks. Besides, I feel the price is a bit expensive. I bought 120. This is just a music score. You can play China Forum with your fingers, and there are countless music scores to download, which are basic, difficult and even your favorite, and then download gp5 by computer, which is quite good.