Book excerpt: The writings of Thomas Robert Malthus continue to resonate today, particularly An Essay on the Principle of Population which was published more than two centuries ago. Malthus Across Nations creates a fascinating picture of the circulation of his economic and demographic ideas across different countries, highlighting the reception of his works in a variety of nations and cultures. This unique book offers not only a fascinating piece of comparative analysis in the history of economic thought but also places some of today’s most pressing debates into an accurate historical perspective, thereby improving our understanding of them.