The September national advertising campaign is set to cover the country in posters posing questions based on the 2008 theme 'If God did exist what would you ask?' which will tie in with local promotional initiatives run by Alpha courses across the UK.

There will be adverts on the backs and sides of 2200 buses, 750 billboards and a further 100 giant billboards, a poster at almost every mainline railway station and 200 posters at London Underground stations.

Click here for more information about the Alpha Invitation and how to get involved.