Wilmar B. Schaufeli is professor emeritus of Work and Organizational Psychology at Utrecht University, The Netherlands, and distinguished research professor at KU Leuven, Belgium. His main research field is occupational health psychology. He received his PhD (magna cum laude) from Groningen University, The Netherlands. Initially, he was interested in job stress and burnout but currently he also focuses on positive occupational health, notably work engagement. He is one of the authors of the Job-Demands Resources model, which is currently the most popular conceptual model that is used in occupational health psychology. With over 550 articles, chapters and books, Dr. Schaufeli is a prolific Highly Cited Researcher, ranking among the top 1% in his field since 2013. Dr. Schaufeli is a fellow of the European Academy of Occupational Health Psychology, a licensed occupational health psychologist, and also works part-time as an organizational consultant.