The Associate System is a correspondence course—a subscription system that is divided into ten separate Levels or series known as Libers, each containing twelve lessons. These are further grouped into four primary courses in Occult Science:
1) The Foundation Course
(including the Rosicrucian Series, the Hermetic Series, and the Kabalah / Tarot Series)
2) The Intermediate Course
(including the Alchemical Series, the Esoteric Series, and the Philosophic Series)
3) The Advanced Course
(including the Psychological Series, the Spiritual Series, and the Spiritual Healing Series)
4) The Post Graduate Course (including the Spiritual Alchemy Series)