Natural Symbols

Natural Symbols: Explorations in Cosmology (first published 1970) is an influential book by the British cultural anthropologist Mary Douglas. Further editions were published in 1973, 1982, 1996, 2003. It was also published in 2003 as volume 3 in Mary Douglas: Collected Works (ISBN 0415291062).

Theoretical innovation
It was in Natural Symbols that Douglas introduced the "group-grid" theory, with "group" indicating how clearly defined an individual's social position is as inside or outside a bounded social group, and "grid" indicating how clearly defined an individual's social role is within networks of social privileges, claims, and obligations. The group–grid pattern was later to be refined and redeployed in laying the foundations of the cultural theory of risk.

Reviews
Natural Symbols was reviewed by:
 * K. O. L. Burridge in Man, New Series, 5:3 (1970), p. 530;
 * David Martin in British Journal of Sociology, 21:3 (1970), pp. 343–344;
 * David R. Bell in The Philosophical Quarterly, Vol. 22, No. 88 (1972), pp. 280–282;
 * Shlomo Deshen in American Journal of Sociology, 77:1 (1971), pp. 163–166;
 * Martin G. Silverman in American Anthropologist, New Series, 73:6 (1971), pp. 1293–1295;
 * Anthony Storr, "The Ritual of Language and Vice Versa", in Chicago Tribune, June 28, 1970.