Eugenio Barba first defined ‘theatre anthropology’ as the study of the human being in an organized performance situation in a lecture in Warsaw in May 1980. The first session of ISTA (International School of Theatre Anthropology) was held in October 1980 and the last to date in 2023. This article gives a personal account of ISTA’s history from its origins, rooted in Eugenio Barba’s interest in Asian classical theatre techniques and the founding of Odin Teatret in Denmark, to the most recent experiences, which include the intercultural production of Anastasis/Resurrection at the 2023 Theatre Olympics in Budapest. It identifies masters of given ISTA sessions and their invaluable contribution to the School’s emphasis on, and understanding of, craft, as well as the distinguishing characteristics and points of change and development of selected ISTAs.