Charles Thomas Osborne (24 November 1927 – 23 September 2017) was an Australian journalist, theatre and opera critic, poet and novelist. He was the assistant editor of The London Magazine from 1958 until 1966, literature director of the Arts Council of Great Britain from 1971 until 1986, and chief theatre critic of Daily Telegraph (London) from 1986 to 1991. He is the only author the Agatha Christie Estate has ever allowed to produce adapted works in her name. Source: Wikipedia (en)