The Complete Illustrated Book of Yoga
The Complete Illustrated Book of Yoga by Swami Vishnudevananda is the classical authoritative text on yoga. When it was first published in 1960 yoga was relatively unknown. Millions of copies were sold and yoga spread to all. The book contains 140 photos of Swami Vishnu doing the asanas and contains deep philosophical knowledge.
Meditation and Mantras
The "Meditation and Mantras" by Swami Vishnudevananda has been translated into Vietnamese by Swami Sitaramananda and is now available for purchase. This is the main textbook used for the Advanced Teachers Training Course.