In data-vis-ualization techniques are continually increasing the volume and complexity of data that can be studied meaningfully. In particular, three systems developed at the IBM United Kingdom Scientific Centre have been applied in a wide variety of archaeological situations: a graphics-database system called the Winchester Graphics System (WGS), IBM's IAX (Image Applications executive) image processing system, and the WINches-ter Solid Modelling system called WINSOM. It has been shown that these systems not only permit well-known problems to be answered in new and interesting ways but have freed archaeologists to explore previously un-discovered avenues of research. The techniques devel-oped using these systems also have major implica-tions for education and training.