Six titles, including books about bees and a former prime minister, are on the shortlist for the Samuel Johnson Prize.
Margaret Thatcher: The Authorized Biography, Volume One: Not for Turning has been written by Charles Moore.
Also making the list are Empires of the Dead by David Crane; Return of a King by William Dalrymple and The Pike by Lucy Hughes-Hallett.
Under Another Sky by Charlotte Higgins and Dave Goulson’s A Sting In The Tale complete the non-fiction prize lineup.
This year’s winner of the £20,000 prize will be announced on 4 November.
