Over the course of five decades, John Williamson has published an extraordinary number of books, articles, and other pieces on topics ranging from international monetary economics to development policy and bridging scholarly literature and policy debates. This book provides an overview and insight into Williamson's work. It includes contributions from the editors, Stanley Fischer, Edwin M. Truman, Paul De Grauwe, Yuemei Ji, Marcus Miller, Avinash Persaud, Stephany Griffith-Jones, Dagmar Hertova, Olivier Jeanne, Shankar Acharya, Jose Antonio Ocampo, and an essay by John Williamson on designing economic policy.