Traditionally, Human-Computer Interaction (HCI) is a highly interdisciplinary field bridging the research between psychological research and computer science. This paper places great emphasis on a new pattern language based on Gestalt principles, among which Pr?gnanz is regarded as the fundamental one. Psychological findings, pattern methodology and linguistic categories consequently form the basis of our work. The proposed pattern language, not yet finished, is intended to support visual design [11] in a usercentered way by providing comprehensive information about Gestalt principles. Keywords HCI, Gestalt principles, patterns, linguistic categories ACM Classification Keywords