Hatha Yoga Pradipika
Yogi Swatmarama
Karma Yoga
Swami Vivekananda
Vedanta Philosophy
Swami Abhedananda
The Upanishads
Swami Paramananda
Yoga Introduction
Annie Besant
Yoga Lessons
Swami Mukerji
Raja Yoga
Yogi Ramacharaka
Pranayama
Yogi Ramacharaka
Gnani Yoga
Yogi Ramacharaka
Yoga Sutras of Patanjali
Maharishi Patanjali