About: http://dbpedia.org/resource/Agatha_Christie:_An_Autobiography

An Autobiography is the title of the recollections of crime writer Agatha Christie published posthumously by Collins in the UK and by Dodd, Mead & Company in the US in November 1977, almost two years after the writer’s death in January 1976. The UK edition retailed at £7.95 and the US edition at $15.00. It is by some considerable margin the longest of her works, the UK first edition running to 544 pages.