Darby Costello is a counseling astrologer, author, and public speaker. In 1988 she began teaching at the Centre for Psychological Astrology, founded by Liz Greene and Howard Sasportas. Darby is an instructor for the Faculty of Astrological Studies, Astrology University, the Mercury Internet School of Psychological Astrology, and The London School of Astrology. In 2013 she received the Charles Harvey Award for Exceptional Service to Astrology.

In 2006 Darby received a Master’s Degree in “Cultural Astronomy and Astrology” at Bath Spa University. This has given her a greater taste for history and a deeper love of writing. However, her first love in astrology is doing charts and her worldwide clientele is the ground out of which her astrological inspiration is nourished. Her teaching demonstrates her fascination with the personal dynamics revealed in the birth chart as well as her commitment to allow an active unfolding of archetypal patterns in every moment, so that her work remains engaging and fresh, both for herself and her students.