Details of the Official Programme such as who prints it and the size of the print run are currently under wraps, but copies will be available for £2 at key points along the wedding route.

Proceeds will be donated to the Foundation of Prince William and Prince Harry.

Alongside details of the service, the programme includes a never-before-seen photo of the couple taken by photographer Mario Testino and Catherine Middleton’s new Coat of Arms on the back cover.

Andrew Taplin, managing director of Haymarket Network, which will also produce programmes for next year's Olympic events, said: "I am absolutely delighted that Haymarket Network has been chosen to produce official programmes for arguably the two highest profile events in the UK this year and next. We understand the power of compelling content in driving audience engagement both in print and online and we are very pleased to have been able to help bring the nation closer to the wedding of Prince William and Catherine Middleton in this way."