Dr. Sivasailam “Thiagi” Thiagarajan is the founder and Resident Mad Scientist at The Thiagi Group, an organization with the mission of helping people improve their performance effectively and enjoyably.
Thiagi served as the editor of ISPI’s Performance & Instruction for more than 10 years. He has written a monthly GameLetter for 15 years; it currently appears as the GameBlog on this website.
Thiagi has twice been elected the president of the International Society for Performance Improvement (ISPI), 27 years apart (in 1979 and 2006). He has also been the five-time president of the North American Simulation and Gaming Association (NASAGA).
As a global nomad, Thiagi has lived in three different countries and has conducted training workshops in 21 others. Earlier in his life, he has been a high-school science teacher, street corner magician, researcher, editor of a professional journal, keynote speaker, college professor, USAID project director, and writer.