Michael Quinn Patton, PhD, is an independent consultant who has been conducting program evaluations since the 1970s. Based in Minnesota, he was on the faculty of the University of Minnesota for 18 years and is a former president of the American Evaluation Association (AEA). His books include Blue Marble Evaluation, Developmental Evaluation, Developmental Evaluation Exemplars, Principles-Focused Evaluation, Qualitative Research and Evaluation Methods (now in its fourth edition), and Utilization-Focused Evaluation (now in its fourth edition), among others. He is a recipient of the Alva and Gunnar Myrdal Evaluation Practice Award and the Paul F. Lazarsfeld Evaluation Theory Award, both from AEA, as well as the Lester F. Ward Distinguished Contribution to Applied and Clinical Sociology Award from the Association for Applied and Clinical Sociology. Dr. Patton is an active trainer and workshop presenter who has conducted applied research and evaluation on a broad range of issues and has worked with organizations and programs at the international, national, state, provincial, and local levels.