For those wondering the amount of work that goes into a G-20 Summit, perusing the fact sheets below will give some idea of how much gets packed into these short events when leaders around the world come together.

WHITEHOUSE: President Obama at the G-20 Summit

As the UK's Europe Minister, David Lidington, said: "If you look at the summit conclusions, you'll find very ambitious language there about strengthening the single market, cutting the amount of red tape and regulation on small businesses, on expanding external trade".

BBC: Opportunity for Britain amid European uncertainty