Assembling scholarship on the subject of nationalism from around the world, this Research Handbook brings to the attention of the reader research showcasing the unprecedented expansion of the scholarly field in general and offers a diversity of perspectives on the topic. It highlights the disarray in Western social sciences and the rise in the relative importance of previously independent scholarly traditions of China and post-Soviet societies. Nationalism is the field of study where the mutual relevance of these traditions is both most clearly evident and particularly consequential. Chapters explore specific cases (some of them previously underexplored) across a range of topics, including: the construction of a national identity, the institutionalization of nationalism, democracy and self-determination, the roles of class, ethnicity, religion and race in nationalism, and the connection between nationalism and the economy. Offering a comparative perspective on nationalism across different regions and civilizations, this Handbook also allows the reader to compare and evaluate different approaches across the social sciences, re-examining their utility. Political science, sociology and international relations scholars will find this to be an essential read in exploring the wide-ranging differences in nationalism across different countries, and its effects both historically and in modern times. This will also be a valuable book for policy-makers looking for different perspectives on the topic.