For its millions of readers, the National Geographic has long been a window to the world of exotic peoples and places. In this fascinating account of an American institution, Catherine A. Lutz and Jane L. Collins explore the possibility that the magazine, in purporting to teach us about distant cultures, actually tells us much more about our own.

Lutz and Collins take us inside the National Geographic Society to investigate how its photographers, editors, and designers select images and text to produce representations of Third World cultures. Through interviews with the editors,...