Your search for "yoga" revealed the following:

Yoga Philosophy (In Relation to other Systems of Indian Thought)

Material Success Through Yoga Principles (Set of 2 Volumes)

The Complete Book of Yoga: Harmony of Body and Mind

Spirit On The Move (Personal Essays on Yoga in Daily Life)

Abstracts and Bibliography of Articles on Yoga from Kaivalydhama

Enlighted Pharmaco Therapeutics of Ayurveda (A Book on Aushadha Yoga Profiles)

Life Poetry Yoga - Personal Letters (Set of 3 Volumes)

Yoga Research and Cultural Synthesis (Souvenir of the 6th International Conference)

Samkhya Karikas (The Foundation of Yoga Philosophy)

YOGA - A Study of the Mystical Philosophy Of the Brahmins and Buddhists

Musings on Yogavaasishta (Yoga Vasistha) – Part IV (The Calm Down)

A Handbook of Yoga - Nidra (Sanskrit Text with Transliteration and English Translation)

Musings on Yogavaasishta (Yoga Vasistha) Part I (Vairaagya and Mumukshu Vyavahaara Prakaranaa)

The Path of Modern Yoga - The History of an Embodied Spiritual Practice

The Yoga of Kirtan - Conversation on The Sacred Art of Chanting

Realization of the Supreme Self: The Bhagavad Gita Yoga-s

"BABAJI'S KRIYA YOGA: Deepening Your Practice" By Jan "Durga" Ahlund and M. Govindan

Living Within (The Yoga Approach to Psychological Health and Growth)

Raja Yoga For Everyone- Overview and Practice Capsules (The 2nd Chapter)

Karma Yoga For Everyone- Overview and Practice Capsules (The 2nd Chapter)