“Geocentricity might well be egocentricity” The phenomenon of retrograde motion is based on our Earth-centered view of the solar system, but the movement and cycles of retrograde planets are based entirely on the apparent motion of thesun through the zodiac. This book organizes and explains retrograde motion from a systems-viewpoint-the system ofthe sun and planets and interprets retrograde planets natally, by progression and in transit. Erin Sullivan has penetrated the veil of myths, mystery and false assumptions about the geocentric phenomenon of retrograde motion for students of astrology. She has carefully outlined the system of retrograde motion and applied it to both natal horoscopes and transiting cycles. Through her research and experience with client cases, Sullivan has explored all the possible cycles within cycles that retrograde planets perform. She has interpreted those movements in a way that is immediately apparent and useful to both novice and professional astrologer and provides both psychological and mundane interpretations of retrograde planets.