Peter Berger (1929) is an American sociologist best known for his collaboration with Thomas Luckman in writing The Social Construction of Reality: A Treatise in the Sociology of Knowledge. That book argues that human reality, and knowledge of it, is a social construct, emerging from the individual or group’s interaction with larger social structures (institutions). Social structures, once widely adopted, lose their history as social constructions (objectivation), and come over time, by the people who live within them, to be deemed natural realities independent of human construction (reification). Berger predicted, in his later book, The Sacred Canopy, near-term all-encompassing secularization of religion, which prediction has proved false, especially in the third world (as Berger himself has acknowledged in his later work, Desecularization).