The Seth Material is a collection of writing dictated by Jane Roberts to her husband from late 1963 until her death in 1984. Roberts claimed the words were spoken by a discarnate entity named Seth. The material is regarded as one of the cornerstones of New Age philosophy, and the most influential channelled text of the post-World War II "New Age" movement, other than the Edgar Cayce books and A Course in Miracles. Jon Klimo writes that the Seth books were instrumental in bringing the idea of channeling to a broad public audience.