Books on pranayama
|Prana and Pranayama
The best reference book on the subject, for students of all levels. Most useful advice on how to build and progress your own pranayama practice.
|The Breathing Book: Vitality and Good Health Through Essential Breath Work
Useful section on "style of breathing"
|Pranayama the Breath of Yoga
Another well researched reference book. Very useful section on bandhas.
|Breath, Mind and Consciousness by Harish Johari
A short and somewhat amusing introduction to Swara yoga
|Swara Yoga: The Tantric Science of Brain Breathing.
The reference on Swara yoga
|Moola Bandha, the Master Key
Useful reference book for intermediate and advanced practioners