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หนังสือ Prep Course Lesson มีทั้งหมด 6 Level

Alfreds Basic Piano Prep Course: Lesson Book A
Alfreds Basic Piano Prep Course: Lesson Book B
Alfreds Basic Piano Prep Course: Lesson Book C
Alfreds Basic Piano Prep Course: Lesson Book D
Alfreds Basic Piano Prep Course: Lesson Book E
Alfreds Basic Piano Prep Course: Lesson Book F

Alfreds Basic Prep Course, Levels A through F, was written to answer a demand for a course of piano study designed specifically for students who are five years old and up. This course offers a careful introduction of fundamentals, music that fits comfortably under the young students normal hand span, plus constant reinforcement, all leading to results beyond those generated by other piano methods. After Lesson Book B, the student may progress to Prep Course, Lesson Book C or choose to go directly into the faster paced Level 1B of Alfreds Basic Piano Library. The complete Prep Course consists of six books (Levels A through F).