The Confessions of Jean-Jacques Rousseau

Jean-Jacques Rousseau's autobiography Confessions was banned by U.S. Customs in 1929 as injurious to public morality. His philosophical works were also banned in the USSR in 1935, and some were placed on the Catholic Church's Index of Prohibited Books in the 18th century. (The Index was a primarily a matter of church law, but in some areas before the mid-19th century, it also had the force of secular law. A summary of the contents of the last edition, published in 1949, is available from the Internet Archive. The Index was finally abolished in 1966.)