The Anarchist Cookbook, first published in 1971, is a book containing instructions for the manufacture of explosives, rudimentary telecommunications phreaking devices, and related weapons, as well as instructions for the home manufacture of illicit drugs, including LSD. It was written by William Powell at the apex of the counterculture era to protest against United States's involvement in the Vietnam War. Powell converted to Anglicanism in 1976 and later attempted to have the book removed from circulation.