Theodor Abt (1947), born in Zurich, Switzerland; Ph.D. from the Federal Institute of Technology (ETH) in Zurich 1977, 1973-79 project leader of overall regional development concepts for two Swiss mountain regions. Since 1975 Jungian Analyst in private practice. 1983-88 member of the board of the C.G. Jung Institute, Zurich. Since 1990 Professor for Rural Sociology at the ETH.

Since 1995, member of the board of the Research and Training Centre for Depthpsychology according to C.G. Jung and M.-L. von Franz, Zurich. Since 1988, President of the Society of the Friends of the Royal Tombs of Egypt. His research focuses on the relationship of the outer world with the needs of the inner unconscious world. Together wird Wilferd Madelung he is editor of the Corpus Alchemicum Arabicum (CALA) series.

Of his publications in German is available in English: Progress without Loss of Soul, 1990 and Dark Clouds over Europe, 2014.