The Week: Advertising news - Mayor in £2m ad campaign

Boris Johnson, the Mayor of London, is launching a £2 million global marketing campaign, funded by the London Development Agency, to boost tourism.

The campaign, "only in London", is expected to deliver an additional £60 million to London's economy by the end of 2009. It will launch in the UK at the end of April and be rolled out in Europe and North America over the summer.