Key figures who have held the highest jobs in government talk about their time in power.
Politicians recall the highs and lows at start of their ministerial careers.
Giles Dilnot's latest guide on how to be a secretary of state.
Former energy and climate change secretaries on the 'baby of Whitehall' cabinet position.
Lord Lamont, Lord Lawson, Ken Clarke and Alistair Darling on the top Treasury role.
Former Labour and Conservative education secretaries on doing the job.
Liam Fox, Lord Heseltine, Lord Robertson and others share their thoughts on the job
Giles Dilnot spoke to William Hague, Margaret Beckett, Jack Straw and others
Giles Dilnot speaks to seven former health secretaries about the job
Giles Dilnot speaks to former holders of the post as part of a new series
