Book excerpt: The volume gathers twenty original essays by experts of American memory studies from the United States and Europe. It extends discussions of U.S. American cultures of memory, commemorative identity construction, and the politics of remembrance into the topical field of transnational and comparative American studies. In the contexts of the theoretical turns since the 1990s, including prominently the pictorial and the spatial turns, and in the wake of multicultural and international conceptions of American history, the contributions to the collection explore the cultural productivity and political implications of both officially endorsed memories and practices of oppositional remembrance. Reading sites of memory situated in or related to the United States as crossroads of transnational and intercultural remembering and commemoration manifests their possibly controversial function as platforms and agents in the processes of cultural exchange and political negotiation across the spatial, temporal, and ideological trajectories that inform American Studies as Atlantic Studies, Hemispheric Studies, Pacific Studies. The interdisciplinary range of issues and materials engaged includes literary texts, personal accounts, and cultural performances from colonial times through the immediate present, the significance of war monuments and ethnic memorials in Europe, Asia, and the U.S., films about 9/11, public sculptures and the fine arts, American world's fairs as transnational sites of memory.