The campaign will include direct mail, a dedicated and a CRM email programme showcasing the iconic nature of 20th Century design and its impact on British culture.
The stamp designs include Mary Quant's miniskirt, a Supermarine Spitfire, Harry Beck's London Underground map and the Anglepoise lamp among others.
The Design Classic mail packs focus on encouraging stamp collecting and will be sent to existing Royal Mail stamp collectors as well as targeting prospects with an interest in design.
All activity will drive traffic to the campaign microsite where visitors can purchase the stamps and sign up to Royal Mail's customer email programme.
Proximity London and OMD have devised three phases of activity as part of the Royal Mail's 2008/09 customer acquisition strategy, each timed to coincide with a different specially selected stamp issue.
Caroline Forbes, senior marcomms manager at Royal Mail, said: "Stamps are about more than just the product; stamp collecting is an interest and as such can be difficult to define in terms of demographics.
"Proximity London's activity allows us to overcome this and communicate with our customers in a creative and highly targeted way."
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