Vivekananda’s work on India’s Yogas is perhaps the most significant. He not only presented the subject in all its major forms quite elaborately more than a century ago, but also enchanted the West by its theories and practices. In fact, the yogas have been his main tool in his work in America and Europe. He even dictated the books for exactness and general promotion. These small books have been very popular and still are. We thought to bring them out together to provide a complete, as also comparative, view of the subject so popular worldwide these days. It will also correct the prevailing view that Yoga is Raja Yoga only and that too, its asanas.