Purity and Danger
 Purity and Danger: An Analysis of Concepts of Pollution and Taboo (first published 1966) is the best known book by the influential anthropologist and cultural theorist Mary Douglas. In 1991 the Times Literary Supplement listed it as one of the hundred most influential non-fiction books published since 1945. It has gone through numerous reprints and re-editions (1969 1970 1978 1984 1991 2002).