How have jobs changed in the last 150 years? In The Division of Rationalized Labor (Harvard UP, 2025) Michelle Jackson, an Associate Professor in the Department of Sociology at Stanford University examines the original theories about the division of labour and explains why many predictions about the future of work did not emerge. Drawing on detailed case studies of medicine, law, education and manufacturing the book charts the intertwined rise of the sciences, the expansion of occupational responsibilities, and the increasing complexity of work. Theorizing the paradox of specialization, alongside detailed empirical analysis, the book is essential reading across the social sciences and for anyone interested in understanding work and occupations today.