Following his PhD at Harvard University, Theodore Tomaras worked as research associate at CalTech and junior faculty at Rockefeller University, before joining the University of Crete, Greece, where he is now Professor of Physics Emeritus. He has taught many undergraduate and postgraduate courses, on elementary particle physics, quantum field theory, and gravitation and cosmology. He has contributed to the study of magnetic monopoles in GUT models, to the physics beyond the Standard Model, to the study of solitons in High Energy and Condensed Matter Physics, and to astroparticle physics. He has served as Head of the Department of Physics and of the Institute of Theoretical and Computational Physics of the University of Crete for several years, and was recently honoured with the 'S. Pihorides Award for Exceptional University Teaching'.