Holotropic Breathwork, Second Edition: A New Approach to Self-Exploration and Therapy

The Way of the Psychonaut Vol. 1: Encyclopedia for Inner Journeys

Holotropic Breathwork: A New Approach to Self-Exploration and Therapy

Spiritual Emergency: When Personal Transformation Becomes a Crisis

Realms of the Human Unconscious: Observations from LSD Research

The Way of the Psychonaut Vol. 1: Encyclopedia for Inner Journeys

The Holotropic Mind: The Three Levels of Human Consciousness and How They Shape Our Lives

Psychology of the Future: Lessons from Modern Consciousness Research

The Ultimate Journey (2nd Edition): Consciousness and the Mystery of Death

Ancient Wisdom and Modern Science