Stephen P. Robbins previouslyworked for the Shell Oil Company and Reynolds Metals Company and has taught atthe University of Nebraska at Omaha, Concordia University in Montreal, theUniversity of Baltimore, Southern Illinois University at Edwardsville, and SanDiego State University. He is currently professor emeritus in management at SanDiego State. Dr. Robbins's research interests have focused on conflict, power,and politics in organizations; behavioral decision making; and the developmentof effective interpersonal skills. His articles on these and other topics haveappeared in such journals as Business Horizons, the CaliforniaManagement Review, Business and Economic Perspectives, International Management,Management Review, Canadian Personnel and Industrial Relations, and TheJournal of Management Education. Dr. Robbins is the world's best-sellingtextbook author in the areas of management and organizational behavior. Hisbooks have sold more than 12 million copies and have been translated into 20languages. His books are currently used at more than 1,500 US colleges anduniversities, as well as hundreds of schools throughout Canada, Latin America,Australia, New Zealand, Asia, Europe, and the Arab World. Dr. Robbins alsoparticipates in masters' track competition. Since turning 50 in 1993, he's won23 national sprint championships and 14 world sprint titles. He was inductedinto the US Masters Track & Field Hall of Fame in 2005. A full bio isavailable at stephenprobbins.com.

Timothy A. Judge isthe Joseph A. Alutto Chair in Leadership Effectiveness, and ExecutiveDirector of the Fisher Leadership Initiative, Fisher College of Business, forThe Ohio State University. In the past, Dr. Judge has been a Fellow of theCambridge Judge Business School, University of Cambridge, and VisitingProfessor, Division of Psychology & Language Sciences, University CollegeLondon. He has held academic positions at the University of Notre Dame,University of Florida, University of Iowa, Cornell University, and CharlesUniversity in the Czech Republic. Dr. Judge's primary research interests are in(1) personality, moods, and emotions; (2) job attitudes; (3) leadership; and(4) careers. Dr. Judge has published more than 155 articles in these and othermajor topics in refereed journals. He is a fellow of several professionalsocieties, including the American Psychological Association, the Academy ofManagement, and the International Association of Applied Psychology. Among themany professional acknowledgments of his work, Dr. Judge has received theHeneman Career Achievement Award, the Mahoney Doctoral Mentoring Award, and theScholarly Achievement Award, all from the Human Resources Division of theAcademy of Management. In addition, a 2017 study identified him as the mostcited out of more than 8,000 scholars in applied psychology. Dr. Judge is aco-author of Organizational Behavior with Stephen P. Robbins,and Staffing Organizations with John Kammeyer-Mueller.Judge's primary nonwork passion revolves around rock climbing andmountaineering. He has climbed the three highest peaks in the UK and nearlyhalf of the highest peaks in the lower forty-eight states. He and his wife Jillare the parents of three children.