The report forecasts growth of 5.5 per cent in 2014 and 5.5 per cent in 2015.
UK ad spending reached 17,877m in 2013, up 3.9 per cent on the previous year. Mobile advertising (+95 per cent), broadcast video on demand (+21 per cent) and digital national newsbrands (+19.5 per cent) all experienced strong growth.
Advertising Association chief Tim Lefroy said: “Another set of positive indicators to support the growth story every pound spent on advertising returns six to GDP. The forecast explosion in mobile advertising and digital formats points to UK advertising at the centre of a global revolution in consumer information, service and choice.