In any book, the authors are always given due credit, but is clear that any type of project like this always involves more than just one or two people. And so it is with this third edition. While the authors take full responsibility for its content, there are hundreds of other human resource professionals around the globe who have contributed to these pages. So to these HRD'ers who have taken part in the "Train-the‐ Trainer" workshops, and have helped refine and update the material, we are most grateful.
A very special word of "thanks" goes to our fellow members of the American Society for Training and Development (ASTD). Meeting Professionals International (MPI), and the National Speakers Association (NSA), who have attended our workshops at their chapter and national conferences. Their suggestions, counsel, and ideas were most helpful as we tried to bring forth a work that would be of interest not only to our newer colleagues, but to the experienced trainer, speaker, and meeting facilitator as well.