The list author says: "I was a piano student from the age of 6 - 16. My teachers taught me using the classical approach (strict note-by-note reading). Now, I am a music educator and for the past ten years I have taught up to 24 students at a time using the "Pop" approach (not as structured as classical, utilizing chords and allowing for ear training as well). After studying the many different course books out there for music education, I feel the John Schaum course can be used by both methods of teaching, are very simple to read and understand, and take a very methodical, measurable approach to learning music. In addition, I also firmly believe in the "Wee Sing" book series as it can span a wide variety of ages and musical abilities. They are a great way to introduce children to the world of music, but can also be used by the advanced musicians who are trying to master the art of playing by ear using chords. Please browse the many options below. The first ten of the John Schaum series are listed in difficulty level order, the first two are for the beginner."