Advaita-Vedanta and Sri Ramana: By Dr. Harsh K. Luthar
Advaita is a Sanskrit term and means “not two”. It refers to the philosophy of nondualism. There is a lot of literature on Advaita Vedanta that can be found in any good library and, of course, the Internet.
Excellent and reliable information on classical Advaita-Vedanta and the saints associated with that tradition can be found at the following links.