Here are a series of Guides to help get the best out of any Direct Marketing campaign. These guides come from the leading centres in the industry and its worth checking these out. Its free and you may well gain a few ideas and avoid a mistake.
DMA Guides to Agencies
DMA Guide to Business to Business
DMA Guides to Data
DMA Guides to E-Mail Marketing
DMA Guides to Mailing Houses
DMA Guides to Response & Fulfillment
DMA Mobile Marketing
DMA Research Documents
DMA Best Practice Guide on Information Security
Information Commissioner
Royal Mail