1912 onwards · Switzerland
Jung names the archetypes.
Carl Jung describes the archetypes of the collective unconscious — universal patterns of behaviour, thought and emotion that appear in myths across cultures and centuries, yet are always expressed personally. He also names the shadow: the unlived, unconscious side of every pattern.
1980s – 1990s · United States
Shadow Work® takes form.
Building on the mythopoetic wave — Robert Moore and Douglas Gillette's King, Warrior, Magician, Lover chief among its maps — a practical, facilitated process for meeting the hidden parts of ourselves is developed and refined: Shadow Work®. The four-quarter model becomes a working floor, not just a book.
2000s · United States & Europe
A typology emerges from the practice.
Decades of facilitation reveal recurring patterns: the same coping strategies, formed around the same kinds of hidden material, appearing again and again. The patterns are named and organised around the four archetypal energies — three types to each quarter, twelve in all.
2010s · International
The Shadow Types Survey.
The twelve types are made measurable. The Shadow Types Survey gives individuals a precise, non-pathologising mirror: which types lead, which sit in shadow, and what each pattern is protecting. A practitioner community grows around debriefing it.
2020s · International
APRO Dynamics brings the model to work.
For organisations, the energies are renamed for what they provide — Awareness, Positivity, Results, Openness — and the model is applied to leaders, teams and whole systems. The APRO Dynamics survey and consultant practice take shape.
2026 · United Kingdom
Understand Your Shadow is founded.
The individual and organisational practices are brought under one roof: Understand Your Shadow. One model, two doorways — the Shadow Types for a life, APRO Dynamics for a team — with the Institute holding the training pathway and the register of certified practitioners.
2024 · United Kingdom
The Institute formalises.
The practitioner community establishes the Understand Your Shadow Institute — the community of practice holding the register of certified practitioners, the Code of Ethics, the annual licensing agreement, and the standards under which members practise.
Today · International
A growing community, in many languages.
Certified practitioners now work across Europe and beyond — in person and over video, in cities and country retreats — bringing the Shadow Types to practitioners, therapists, guides, mentors, leaders and individual seekers.