From the Publisher
The purpose in compiling this method is to give the student a thorough, interesting and progressive approach to the fundamentals of good playing. The author has intentionally tried not to cover too much ground; but rather to concentrate on the acquisition of a thorough musical background as a solid foundation in the basic fundamentals.
Difficulty level, roughly compared to ABRSM exam grades. 0 is beginner, 9 is advanced (beyond grade 8).