Janet Morgan is a writer and consultant who worked in the government's `Think Tank' from 1978 to 1981 and now advises governments, companies and other organizations on long-range planning, new technology and different strategies. Her books include The House of Lords and the Labour Government 1964-70 and the acclaimed biography of Edwina Mountbatten. She was the editor of the three-volume edition of The Diaries of a Cabinet Minister and of Backbench Diaries 1951-63 by Richard Crossman and was the co-editor, with Richard Hoggart, of The Future of Broadcasting. Agatha Christie was her first biography.