This is a set and includes ISBN: 9780787973544 The 60-Minute Active Training Series: How to Bring Out the Better Side of Difficult People, Leader's Guide and ISBN: 9780787973582 The 60-Minute Active Training Series: How to Bring Out the Better Side of Difficult People, Participant's Workbook.About the Author: Mel Silberman is president of Active Training in Princeton, New Jersey, a consulting firm that provides courses on active training techniques, interpersonal intelligence, and team facilitation. He is the author and coauthor of the best-selling books, Active Training, 101 Ways to Make Training Active, and PeopleSmart. Freda Hansburg is vice president of Active Training and coauthor of PeopleSmart.