Ira Schepetin (Atma Chaitanya) has been studying Vedanta for decades. In the following video, he introduces key concepts of Advaita Vedanta.
Ira Schepetin is also a follower of Swami Satchidanandendra Sarasvati, the author of the Method of Vedanta : A Critical Account of the Advaita Tradition. Swami Satchidanandendra Sarasvati is most famous for his controversial interpretation of the concept of ignorance in the teaching of Adi Shankara.