"Social Choice and Individual Values" is a groundbreaking book that introduced the Impossibility Theorem and laid the foundation for social choice theory in economics and political science. The book's central message, Arrow's Theorem, has revolutionized the way we think about decision-making and voting. This new edition, with a foreword by Nobel laureate Eric Maskin, reintroduces Arrow's seminal work to a new generation of students and researchers, sparking continued interest in social choice and voting theory.