The Serpent Power: The Secrets of Tantric and Shaktic Yoga
Principles of Tantra, Part II
Principles of Tantra, Part I
The Garland of Letters: Studies in the Mantra-Sastra
The Psychology of Kundalini Yoga
Hymns to the Goddess and Hymn to Kali
Mantra Yoga and Primal Sound: Secret of Seed (Bija) Mantras