Free Resources from Project Gutemberg
Introduction to Yoga
By Annie Besant
The book is broken up into four “lectures” and although there is no mention on asanas, it explains the basic principles behind the spiritual aspects of yoga, consciousness and the different stages of the mind. I recommend it to people who want to discover the origins of yoga and its involvement with body, mind and spirit.
The Hindu-Yogi Science Of Breath
by Yogi Ramacharaka
“From the first faint breath of the infant to the last gasp of the dying man, it is one long story of continued breathing. Life is but a series of breaths.”
Your mental power, happiness, self-control, clear-sightedness, morals, and even your spiritual growth may be increased by an understanding of the Science of Breath.