This book argues that science fiction has been a key participant, along with anthropology and literary theory, in the interdisciplinary debates over "e;culture"e; and narrative form from the modernist period to the present. Both science fiction and the anthropological ethnography, in their modernist forms and post-modern/postcolonial reinventions, are intertwined technologies for constructing "e;culture"e; and difference through narrative worldbuilding. This book traces the ways SF authors -- including Ray Bradbury, Ursula K. Le Guin, and Octavia E. Butler, as well as Indigenous futurists Craig Strete, Celu Amberstone, Rebecca Roanhorse and Cherie Dimaline -- have deployed, interrogated and revised these models of "e;culture,"e; representation and power to imagine new futures.