Individualism and Economic Order is a book written by Friedrich Hayek. It is a collection of essays originally published in the 1930s and 1940s, discussing topics ranging from moral philosophy to the methods of the social sciences and economic theory to contrast free markets with planned economies. It contains several of his major contribution to the fields of economics, philosophy, and political science. Published in 1948, the book is widely considered a classic of libertarian thought. Hayek presents his vision of individualism as a cornerstone of economic and social theory. The book's chapters have had a major impact on both economics and political philosophy. His arguments have been cited by many leading economists, including Nobel laureates like Elinor Ostrom, James M. Buchanan, and Milton Friedman, who have used Hayek's theories to shape their own work in these fields. It has also shaped the thinking of many libertarians who continue to use his concepts when arguing for the importance of individual freedom in modern economies. Source: Wikipedia (en)