Book excerpt: Research and theorizing in collective action and new social movements have grown rapidly since the 1970s. This volume provides some of the best recent work in the field and illustrates the efforts that have been made to develop research strategies which could fit the theoretical and empirical peculiarities of the research object. Examples include both quantitative approaches such as protest event analysis and network analysis; and qualitative approaches like political discourse analysis and life-histories. It also addresses problems of data construction, research design and operationalization.