Heather Lesley-Swan is a Jungian Analyst trained at the C.G. Jung Institute in Switzerland, a member of the International Association for Analytical Psychology, and a Teaching Member of the International Society for Sandplay Therapy. She was the first certified sandplay therapist and Teaching Member in Australia and New Zealand.

Lesley-Swan is the founding Chairperson of STANZA, the Sandplay Therapy Association of New Zealand and Australia, and serves on the Board of the International Society for Sandplay Therapy. She is internationally recognized as a senior educator and thought leader in sandplay therapy.

Based in Sydney, she has taught sandplay therapy across most states in Australia, as well as in Singapore, the United States, Switzerland, and China, and supervises practitioners in several countries. Her presentations on Erich Neumann and the development of consciousness reflect deep engagement with foundational Jungian developmental theory.