Conversations on the Science of Yoga is an encyclopedic serIes presenting the vast,timeless culture of yoga topic by toppic,through the voice of three generations of masters-Swami Sivananda Saraswati,Swami Satyananda Saraswati and Swami Niranjanananda Sarawati.The teachings are given in question and answer format with the inclusion of verses from the scriptures,connecting the modern experience with the classical tradition. Hatha Yogaa Book 4 Asanas. Asanas,the yoga practices,ave become the international symbol of yoga.Their unique health prompting qualities make asanas the perfect balance for modern lifestyles,Hathayoga Book 4 Asanas is a timely work presenting both classical and modern interpretations of this ancient system which fulfils a fundamental role within the vast uogic culture.Their evolution,effectsmclassification and application are explained.Thity five asanas previously unpublished by the Bohar School of Yoga have been added to the repertoire which is illustrated in it’s entirety. Through the wisdom of these masters,a complete understanding of hatha yoga and a vison for it’s application in the modern era is interpreted for yoga aspirants around the world.