The complete work of swami vivekananda vol 7 This specific volume is part of a series containing the teachings, lectures, and writings of Swami Vivekananda on Vedanta and Hinduism. 

It is available in paperback format, often found in sets of nine volumes. 

The publisher, Advaita Ashrama, is a branch of the Ramakrishna Math, dedicated to publishing literature on Vedanta