Roger Kaufman is director of Roger Kaufman & Associates and professor and director of the Office for Needs Assessment and Planning at Florida State University.

Sivasailam Thiagarajan is president of Workshops by Thiagi, a consulting and training company. He is also the editor of the Thiagi GameLetter, a newsletter that deals with training games andactivities.

Paula MacGillis is the editor of The Guidebook for Performance Improvement: Working with Individuals and Organizations, published by Wiley.