Juan C. Stockert (Argentina, 1940) reached physician and MD degrees (University of Buenos Aires, UBA, and Autonomous University of Madrid, UAM) and was awarded two doctorates honoris causa (University of Río Cuarto, and UBA), as well as research fellowships (International Agency for Research on Cancer, Madrid, and Alexander von Humboldt Stiftung, Tübingen, Germany). He was professor of cell biology, head of the Department of Cytology and Histology (UAM), and a scientific member of the High Council for Scientific Research, Spain. His principal research lines are fluorescence histochemistry, organelle labeling, and photodynamic and photothermal therapy for cancer. From 1966 to 2021, he has published 340 papers, supervised 12 doctoral theses, and dictated post-grade courses at numerous universities and scientific meetings. At present, he is an Associate Researcher in the Institute of Oncology (UBA), the Institute of Research and Technology on Animal Reproduction (UBA), and the Integrative Center of Biology and Applied Chemistry (Bernardo O’Higgins University, Santiago, Chile).