This paper presents a study on the dimensions of perceived visual aesthetics of websites. The authors conducted four studies to develop a measurement instrument for perceived web site aesthetics. Using exploratory and confirmatory factor analyses, they identified two main dimensions of perceived aesthetics: "classical aesthetics" and "expressive aesthetics." Classical aesthetics relates to traditional design principles such as order and clarity, while expressive aesthetics relates to creativity and originality. Each dimension is measured by a five-item scale. The results indicate that these items adequately reflect the two perceived aesthetics dimensions. The study also discusses the importance of aesthetics in human-computer interaction and web design, highlighting the need for further research on this topic. The authors conclude that aesthetics is a strong determinant of users' satisfaction and pleasure with websites, and that future research should focus on developing appropriate measures of aesthetics.This paper presents a study on the dimensions of perceived visual aesthetics of websites. The authors conducted four studies to develop a measurement instrument for perceived web site aesthetics. Using exploratory and confirmatory factor analyses, they identified two main dimensions of perceived aesthetics: "classical aesthetics" and "expressive aesthetics." Classical aesthetics relates to traditional design principles such as order and clarity, while expressive aesthetics relates to creativity and originality. Each dimension is measured by a five-item scale. The results indicate that these items adequately reflect the two perceived aesthetics dimensions. The study also discusses the importance of aesthetics in human-computer interaction and web design, highlighting the need for further research on this topic. The authors conclude that aesthetics is a strong determinant of users' satisfaction and pleasure with websites, and that future research should focus on developing appropriate measures of aesthetics.