Howard Sasportas occupies a distinct and formative position within the depth-psychological astrology corpus as co-architect, alongside Liz Greene, of what became institutionalised as ‘psychological astrology’ in the English-speaking world. His primary contribution, the 1985 monograph The Twelve Houses, is consistently cited as the definitive treatment of astrological houses from a depth-psychological perspective — one that, as its foreword argues, uniquely avoids jargon while integrating Jungian individuation theory, existentialist notions of essence and dharma, and humanistic psychology’s language of self-actualisation. The subsequent Seminars in Psychological Astrology series, co-authored with Greene and published from 1987 onward (The Development of Personality, 1987; The Luminaries, 1992), establishes Sasportas as a dialogic presence: his seminars address the psychological significance of astrological symbols — the Sun and Moon, parental complexes, subpersonalities — through a clinical lens informed by psychosynthesis, object relations theory, and Jungian analysis. Across the corpus, Sasportas is referenced both as author and as co-investigator; his voice integrates therapeutic humanism with astrological hermeneutics. Subsequent researchers such as Stella Dennett (2025) situate his work within the broader lineage connecting Jung’s interest in astrology to contemporary depth-psychological practice. The tensions in his work — between deterministic astrological tradition and therapeutic agency, between esoteric symbolism and psychological science — remain productively unresolved.