Start with Adam Smith's An Inquiry into The Nature and Causes of the
Wealth of Nations, University of Chicago Press, written in 1776, with
publication date of 1976, and then read Karl Marx and Friedrich Engels,
The Communist Manifesto,written in 1872 and published by
Penguin Books in 2011. Modern works in political economy typically focus
entirely on economics. The closest exception I could find is a book by
John Ravenhill, Global Political Economy published by
Oxford University Press. At the philosophical level there is a marvelous
romance novel in economics by Russell Roberts entitled The Invisible
Heart, published by MIT press, which consists of endless argument by
an economist high school teacher and a female colleague who, as his arguments
become less vicious and she begins to understand them, eventually becomes his
lover.