"The book's 16 essays gather, systematize, and present Tilly's most salient ideas in one handy location. They contain major schemas about political processes, especially how these processes link to establishing, maintaining, and crossing boundaries."
--Barry Wellman in American Journal of Sociology
"A compelling examination of central problems in social organization and comparative politics....Ideal for introducing the arguments of some of Tilly's books to students in brief, accessible form."
--Paul DiMaggio in Contemporary Sociology