Mosaic UK is Experian’s system for classification of UK households. It is one of a number of commercially available geodemographic segmentation systems, applying the principles of geodemography to consumer household and individual data collated from a number of governmental and commercial sources. The statistical development of the system was led by Professor Richard Webber in association with Experian in the 1980s and it has gone through a number of refreshes and reclassifications since then, each based on more recent data from national censuses and numerous other sources. Since its initial development in the UK, the Mosaic brand name has also been used to market separate products which classify other national consumers, now including most of Western Europe, USA, the Far East and Australia.