Jacqueline Brook trained directly under John Frawley, graduating as both a Horary Craftsman and a Craftsman Astrologer, certified by the Society of Astrologers. She continues her studies under Frawley's guidance. Her practice is rooted entirely in the Tradition, encompassing horary, natal, and electional astrology as taught within the classical lineage. She served on the committee of the Astrological Society of South Africa (ASSA) for three years and is the founding director of AORTA (Astrologers of the Real Tradition of Astrology), an organisation dedicated to promoting classical astrology in Southern Africa. She teaches and certifies students through the Society of Astrologers. Articles on traditional astrology have been published locally and internationally.