Working time is a crucial issue for both research and public policy. This book presents the first comprehensive analysis of both paid and unpaid work time, integrating a unique discussion of overwork, underwork, shortening of the working week, and flexible work practices. Time at work is affected by a complex web of evolving culture and social relations, as well as market, technological, and macroeconomic forces, and institutions such as collective bargaining and government policy. Using a variety of new data sources, the authors review the latest trends on working time in numerous countries.