The Daily Politics is testing the mood of the delegates at the Liberal Democrat, Labour and Conservative parties.
For the fourth year running, a few coloured balls and plastic bins - we call them a mood box - are being used in a series of unscientific polls to see what party members think about key issues.
The delegates are asked a question of the day - by Adam Fleming - and then vote by using their ball and we have a look at the end of the vote to judge the mood of the conference.
All of the videos will appear on this page and also are being used on the BBC party conference coverage index website.
Conservative delegates asked: The party or the parties?
Conservative delegates asked: Construct or cancel HS2
Conservative delegates asked: Margaret Thatcher or David Cameron
Labour delegates asked: Socialism or Capitalism
Labour delegates asked: HS2 on track or derailed?
Labour delegates asked: Buy or bin Damian McBride book?
Labour delegates asked: Ed Balls or Alistair Darling on the economy?
Lib Dem delegates asked: Has the UK economy turned a corner?
Lib Dem delegates asked: Vince Cable or Danny Alexander on the economy?
Lib Dem delegates asked: Tories, Labour (or neither)?