He has written several books on these subjects, and leads ten to fifteen workshops annually in which he teaches participants how to perform retrievals. His retrieval technique is based on the contents of the Lifeline program of The Monroe Institute, although his variant does not involve binaural beat technology, . Moen once stated that he had plans for an "Afterlife Communication Device" similar to a telephone, which would enable direct communication with the deceased without the need for special esoteric knowledge or techniques.