A leading authority in the use of geodemographics, Peter Sleight spent his first ten years in fmcg marketing, with Cavenham, Unicliffe and RHM. He became professionally interested in geodemographics while marketing director at Allen, Brady and Marsh; joined CACI as head of consultancy; and later helped to set up Pinpoint Analysis in 1983. Since 1991 he has run Target Market Consultancy, providing expert independent advice on customer targeting and geodemographic analysis.