Sivasailam “Thiagi” Thiagarajan, PhD, is currently resident mad scientist at the Thiagi Group where he plays games and helps others to play. Since March 21, 1999, he has been conducting a longitudinal research study that involves designing a new learning activity every day (including weekends and holidays). As a result of this obsession, he has published several books and articles related to facilitated learning strategies. A four-time president of North American Simulation Gaming Association (NASAGA) and two-time president of the International Society for Performance Improvement (ISPI), Thiagi has lived in three different countries and has worked and played in 25 others.

Contributor to ASTD Handbook for Workplace Learning Professionals - Available as article-length Fast Fundamentals whitepaper (PDF download): Instructional Facilitation.