Book excerpt: This collection of articles by sociologically minded historians and historically minded sociologists highlights both the long-term persistence and the continuing instability of home country connections. Encompassing societies of origin and destination from around the world, A Century of Transnationalism shows that while population movements across states recurrently produce homeland ties, those connections have varied across contexts and from one historical period to another, changing in unpredictable ways. Any number of factors shape the linkages between home and destination, including conditions in the society of immigration, policies of the state of emigration, and geopolitics worldwide. Contributors: Houda Asal, Marie-Claude Blanc-Chaléard, Caroline Douki, David FitzGerald, Nancy L. Green, Madeline Y. Hsu, Thomas Lacroix, Tony Michels, Victor Pereira, Mônica Raisa Schpun, and Roger Waldinger