The official posters for the London 2012 Olympic and Paralympic Games have been unveiled in the British capital, by some of the artists who created them.

The 12 British artists were commissioned to design special posters for the Games, continuing a 100 year old tradition.

The most famous name chosen was Tracey Emin whose scratchy image of two birds with scrawled words, have given a love letter to the world. The other posters feature an abstract blue blob, entitled "Swimming".

The modern art posters will be available for sale at 7 pounds each, but public reaction to them was not positive on British news websites, with some criticising their appearance.