<p><em>The Mirth of Nations</em> is a social and historical study of jokes told in the principal English-speaking countries. It is based on use of archives and other primary sources, including old and rare joke books. Davies makes detailed comparisons between the humor of specific pairs of nations and ethnic and regional groups. In this way, he achieves an appreciation of the unique characteristics of the humor of each nation or group.</p><p>A tightly argued book, <em>The Mirth of Nations</em> uses the comparative method to undermine existing theories of humor, which are rooted in notions of hostility, conflict, and superiority, and derive ultimately from Hobbes and Freud. Instead Davies argues that humor merely plays with aggression and with rule-breaking, and that the form this play takes is determined by social structures and intellectual traditions. It is not related to actual conflicts between groups. In particular, Davies convincingly argues that Jewish humor and jokes are neithe