This is a course of four lectures on the Nondualist (Advaita) Vedanta theological system as propounded by Sri Sankara, the 8th century CE Hindu theologian. The aim is to focus on the contribution of Sankara to Vedanta theology in general and to Nondualist Vedanta in particular. Theistic Vedanta, articulated by later Vedanta theologians such as Ramanuja, Madhva, and Vallabha, cannot be fully understood without a proper understanding of the works of Sankara.