Widespread Need and Audience: This book is for organization managers and decision makers, policymakers, funders, researchers, and students studying applied social service research. Updated and Expanded Second Edition: Now in its second edition, this popular resource will be a must-have for nonprofit organizations and social work educators. Expert Author: Paul W. Mattessich, Ph.D., is executive director of Wilder Research and has assisted local, national, and international organizations with strategic planning, organizational improvement, and evaluation.