Visualization '94 is the fifth conference in a series devoted to data visualization. The conference is sponsored by the IEEE Technical Committee on Computer Graphics in cooperation with ACM SIGGRAPH. In the short time since the first Visualization conference in San Francisco in 1990, the visualization field has continued to increase in importance and activity, while the conference itself has matured rapidly. From the beginning, the Visualization conferences have been designed to attract both visualization researchers and visualization users with a goal of providing a forum for multi-disciplinary interaction. These Proceedings represent a permanent record of the major aspects of the Conference program - the keynote events, the papers, the case studies, and the panels.