Written in political exile in New Zealand during the Second World War and first published in two volumes in 1945, Karl Popper's The Open Society and Its Enemies is one of the most famous books of the twentieth century. Hailed by Bertrand Russell as a 'vigorous and profound defence of democracy', its now legendary attack on the philosophies of Plato, Hegel and Marx prophesied the collapse of communism in Eastern Europe and exposed the fatal flaws of socially engineered political systems. Popper's highly accessible style, his erudite and lucid explanations of the political thought of great philosophers and the recent resurgence of totalitarian regimes around the world are just three the reasons for the book's enduring popularity and why it demands to be read today.