John F. Henry is an eminent economist who has made important contributions to heterodox economics drawing on Adam Smith, Karl Marx, Thorstein Veblen, and John Maynard Keynes. His historical approach offers radical insights into the evolution of ideas (ideologies and theories) giving rise to and/or induced by the changes in capitalist society. Essays collected in this festschrift not only evaluate John Henry¿s contributions in connection to Marx¿s and Veblen¿s theories, but also apply them to the socio-economic issues in the 21st century.