This is really a 3 volume list of guides: a text, a workbook and a teacher's guide, which i read from continuously, and also have with the past 31 yrs. It is amongst the most vital spiritual messages of our time. The Course combines 21st Century psychology with non-dualistic metaphysics. https://www.youtube.com/channel/UCTleG6-484F7WHZD0hAjRRw