The introduction to this collection of essays by leading academic scholars in the field of contemporary political philosophy presents the main themes of the book as these relate to, and are inspired by, the work of Joshua Cohen. As described, the book is divided into three parts. Part I, with chapters by Archon Fung, Assaf Sharon, and Stuart White, explores ways of reinvigorating democracy. Part II, with chapters by Christopher Lebron, Richard Locke, and Martha Nussbaum, tackles ways of confronting injustice. Part III, with chapters by Helena De Bres, Charles Sabel, and Annabelle Lever, offers principles for an interdependent world. There is also a brief afterword by Joshua Cohen and a list of his publications.