Michael Bratman's work has been unusually influential, with significance in disciplines as diverse as philosophy, computer science, law, and primatology. This is a collection of critical essays by some of contemporary philosophy's most distinguished figures, including Margaret Gilbert, Richard Holton, Christine Korsgaard, Alfred Mele, Elijah Milgram, Kieran Setiya, Geoffrey Sayre-McCord, Scott Shapiro, Michael Smith, J. David Velleman, R. Jay Wallace. It also contains an introduction by the editors, situating Bratman's work and its broader significance. The essays in this volume engage with ideas and themes prominent in Bratman's work. The volume also includes a lengthy reply by Bratman that breaks new ground and deepens our understanding of the nature of action, rationality, and social agency.