New in paperback. Hardcover was published in 2017. Chapters highlight variations in citizenship regimes practiced in different countries, from immigrant states to 'non-western' contexts, from settler societies to newly independent states, attentive to both migrants and those who never cross an international border. Topics include the 'selling' of citizenship, multilevel citizenship, in-between statuses, citizenship laws, post-colonial citizenship, the impact of technological change on citizenship, and other cutting-edge issues.