"Preparing for Birth with Yoga" Janet Balaskas
"Yoga for Americans" Indra Devi
"Breath Sweeps Mind" Ed. Jean Smith
Good introduction to Buddhist meditation and breathwork techniques
"The Book of Meditation" Patricia Carrington, Ph.d
Good research on meditation techniques used in therapy groups
�The Sivananda Companion to Yoga� Lucy Lidell
�The Science of Pranayam� Swami Sivananda�
"Hatha Yoga: The Hidden Language� Swami Sivananda Radha
�Gentle Yoga� Lorna Bell and Eudora Seyfer
This book has information for adapting Yoga to wheelchair patients, the elderly, and and those with limited mobility.
�Integral Hatha Yoga� Swami Satchidananda
�Yoga for Common Ailments� Dr. Robin Monro, Dr Nagarathna, and Dr. Nagendra
�The Complete Idiot's Guide to Yoga� Joan Budilovsky and Eve Adamson
This is a recent find. It does a good job of presenting yoga basics while retaining a sense of humor. Her approach to Yoga is not as traditional as some schools, but most students will enjoy the presentation.