David Cameron's big day

David Cameron gestures to his driver as he prepares to leave his house in London
Photograph: Sang Tan/AP

Cameron makes his way to his office in the House of Commons
Photograph: Stefan Rousseau/PA

A car carrying Cameron and his wife Samantha arrives at 10 Downing Street
Photograph: Sang Tan/AP

The Queen greets Cameron at Buckingham Palace in an audience to invite him to be the next prime minister
Photograph: Getty Images

The official Buckingham Palace document announcing the Queen's request for Cameron to form a new administration
Photograph: Getty Images

Cameron and his wife exit Buckingham Palace after the audience with the Queen
Photograph: Andy Rain/EPA

Barack Obama calls to congratulate Cameron from the White House
Photograph: Getty Images

Samantha Cameron (right) arrives at the Portcullis House annex of the Houses of Parliament
Photograph: Paul Hackett/Reuters

Mr and Mrs Cameron arrive at No 10
Photograph: Lewis Whyld/PA

Mr and Mrs Cameron at No 10
Photograph: Dan Chung/Guardian

Mr and Mrs Cameron outside the door to No 10
Photograph: Graeme Robertson/Guardian

Mr and Mrs Cameron enter No 10
Photograph: Stefan Rousseau/AP

Mr and Mrs Cameron inside No 10 after Mr Cameron's meeting with the Queen
Photograph: Getty Images

Mr and Mrs Cameron inside No 10
Photograph: Getty Images

Mr and Mrs Cameron meet the cabinet secretary, Gus O'Donnell
Photograph: Reuters

Mr and Mrs Cameron leave No 10
Photograph: Ben Stansall/AFP/Getty Images