The teachings of A Course in Miracles have been supported by such mainstream commentators as Oprah Winfrey in her interviews with author Marianne Williamson, and are supported by some "New Thought" churches, such as the Association of Unity Churches.

During the first 19 years of its circulation, A Course in Miracles was published, printed and distributed directly by the students of the work. In 1995, the printing and distribution of the work was licensed to Penguin Books for five years.

In 1976, A Course in Miracles was published and distributed as a three-volume set—which had evolved from the original notes—and comprised three books: Text, Workbook for Students, and Manual for Teachers.

A Course in Miracles was originally written in a collaborative venture by Schucman and Thetford. In the beginning, the Voice (whom Schucman referred to as Jesus) described them as scribes.