This volume investigates the technical and musical requirements necessary for organists to master J.S. Bach's compositions at an advanced level. Anne Marsden Thomas, a distinguished organ pedagogue, curates this collection to provide a structured progression for students moving through the final stages of formal organ training. The book argues that a systematic, graded approach to Bach's repertoire is essential for developing the manual and pedal coordination required for professional performance.

Pedagogues frequently cite this series as a standard resource for organ instruction due to its clear pedagogical progression. Experts highlight the practical editorial choices that make these complex works accessible for students preparing for advanced examinations.