Politics, Prudery and Perversions: The Censoring of the English Stage 1901-1968 Nicholas De Jongh
From 1737, any play scheduled for performance in England was subject to censorship by the Lord Chamberlain's office. After questions in the house, the practice was finally abolished in 1968. This book offers history of English stage censorship, and provides a detailed picture not just of theatre, but of a society policing its own imagination.