Kundalini Tantra by Swami Satyananda Saraswati

Almost certainly the most detailed and practical work available dealing with two of the most fundamental concepts of Tantra, namely Kundalini and the Chakras. Section 1 outlines all aspects of the theory of Kundalini and its awakening. Section 2 is an in-depth study of the Chakra system. Section 3 systematically outlines the practices involved for working with the Chakras as well as fully detailing the previously unpublished practices of Kriya Yoga. Section 4 concerns itself with scientific and medical research into the subject. An essential work for students of Yoga and Tantra