David K. Hayes, PhD, has taught hospitality courses at Purdue University, Texas Tech University, The University of Houston, and Lansing Community College. He has served as the Vice President of Broadcast and Video Training for the American Hotel & Lodging Educational Institute. Jack D. Ninemeier, PhD, is an Emeritus Professor in the School of Hospitality Business at Michigan State University. He has many years’ experience developing and providing training and resource materials for commercial and non-commercial foodservice operations. He has also written several hundred articles for trade journals and created training monographs. Part of Wiley’s Foodservice Operations: The Essentials series.