- Idries Shah
- Mircea Eliade
- Israel Regardie
- J. Donald Walters
- Hazrat Inayat Khan
- Zhuangzi
- Llewellyn Vaughan-Lee
- Sam Hamill
- A.J. Arberry
- Reynold Alleyne Nicholson
- Cornelius Agrippa
- Amina Shah
- Peter Lamborn Wilson
- Herbert Silberer
- Max Kaltenmark
- Ira Friedlander
- Jerome P. Seaton
- Bahauddin
- John Moyne
- Maneewan Chia