The writings of Luigi Einaudi (1874-1961) testify to the author's outstanding contribution to economics during his long career as economist, historian and policy-maker. Of special note is his work on the taxation of consumption rather than income. Throughout his career Einaudi argued the economic and political case for European unity, anticipating the need for a common market and monetary union. His writings on money and on political and economic liberalism are enlivened by a down-to-earth conception of the market and grounded in profound historical and institutional knowledge. This book makes an important selection of his works available in English for the first time.