Anton D. Lowenberg and William H. Kaempfer, The Origins and Demise of South African Apartheid: A Public Choice Analysis. This is an important study that I’m embarrassed to say I wasn’t familiar with it until recently.

Randall G. Holcombe, Political Capitalism: How Economic and Political Power is Made and Maintained. Political capitalism, Holcombe argues, is its own system with its own logic. It isn’t a halfway point between capitalism and socialism. Here’s my review for AIER.

James M. Buchanan, Why I, Too, Am Not a Conservative: The Normative Vision of Classical Liberalism. Buchanan is a moral/scientific individualist and a moral/scientific egalitarian vision. This isn’t a contradiction: he argues that “nondiscrimination” is probably the most important principle in classical liberalism, and he outlines his vision for a world of moral equals. Here’s a piece I wrote on it for AIER.

William H. Hutt, Individual Freedom: Selected Works of William H. Hutt. Hutt, as editors Svetozar Pejovich and David Klingaman point out, is a reformer with a conviction that individual freedom works.
You can pre-order my book with Deirdre McCloskey, Leave Me Alone and I’ll Make You Rich: How the Bourgeois Deal Enriched the World at Amazon.