Take three and pay for only two with coupon TRIPLEEN

Robert L. Heilbroner was an American economist and historian of economic thought. The author of some two dozen books, Heilbroner was best known for The Worldly Philosophers: The Lives, Times and Ideas of the Great Economic Thinkers (1953), a survey of the lives and contributions of famous economists, notably Adam Smith, Karl Marx, and John Maynard Keynes.
Robert L. Heilbroner was an American economist and historian of economic thought. The author of some two dozen books, Heilbroner was best known for The Worldly Philosophers: The Lives, Times and Ideas of the Great Economic Thinkers (1953), a survey of the lives and contributions of famous economists, notably Adam Smith, Karl Marx, and John Maynard Keynes.