Thatcher biography shortlisted for prize
4 November 2013 Last updated at 14:43 GMT
The winner of the UK's leading award for non-fiction books, the Samuel Johnson Prize, is being announced on Monday evening.
Six books are in the running and they cover a raft of subjects - including bees, Roman Britain and Afghanistan, the story of an Italian poet, and a book about First World War cemeteries.
Nick Higham spoke to Charles Moore about his authorised biography of former British prime minister Margaret Thatcher.