The article reviews the relationship between attractiveness and social behavior, challenging the common maxims that beauty is subjective and only skin-deep. It presents a meta-analysis of 11 studies showing that attractiveness is consistently judged and treated across cultures, with attractive individuals receiving more positive evaluations and treatment than unattractive ones. The findings support theories of socialization and evolutionary fitness, suggesting that attractiveness influences social interactions and behaviors. The article also examines the contradiction between these findings and traditional maxims like "beauty is in the eye of the beholder" and "beauty is only skin-deep," which suggest that attractiveness has little impact on social interactions. The authors argue that while these maxims may reflect some truth, they do not fully capture the reality of attractiveness's influence on social behavior. The study also highlights the importance of considering age and gender differences in attractiveness effects, as well as the role of familiarity in shaping judgments and treatment. The authors conclude that attractiveness has a significant impact on social interactions and behaviors, and that future research should focus on understanding the mechanisms behind these effects. The study is based on a comprehensive meta-analysis of 919 effect sizes from over 1,800 empirical articles, with analyses of reliability, judgment, treatment, and behavior/traits. The results show that attractiveness is reliably judged and treated across cultures and that attractive individuals exhibit more positive behaviors and traits than unattractive individuals. The study also examines the role of different types of attractiveness ratings and the impact of methodological differences on the findings. Overall, the article provides a comprehensive review of the relationship between attractiveness and social behavior, challenging the traditional maxims and supporting the theories of socialization and evolutionary fitness.The article reviews the relationship between attractiveness and social behavior, challenging the common maxims that beauty is subjective and only skin-deep. It presents a meta-analysis of 11 studies showing that attractiveness is consistently judged and treated across cultures, with attractive individuals receiving more positive evaluations and treatment than unattractive ones. The findings support theories of socialization and evolutionary fitness, suggesting that attractiveness influences social interactions and behaviors. The article also examines the contradiction between these findings and traditional maxims like "beauty is in the eye of the beholder" and "beauty is only skin-deep," which suggest that attractiveness has little impact on social interactions. The authors argue that while these maxims may reflect some truth, they do not fully capture the reality of attractiveness's influence on social behavior. The study also highlights the importance of considering age and gender differences in attractiveness effects, as well as the role of familiarity in shaping judgments and treatment. The authors conclude that attractiveness has a significant impact on social interactions and behaviors, and that future research should focus on understanding the mechanisms behind these effects. The study is based on a comprehensive meta-analysis of 919 effect sizes from over 1,800 empirical articles, with analyses of reliability, judgment, treatment, and behavior/traits. The results show that attractiveness is reliably judged and treated across cultures and that attractive individuals exhibit more positive behaviors and traits than unattractive individuals. The study also examines the role of different types of attractiveness ratings and the impact of methodological differences on the findings. Overall, the article provides a comprehensive review of the relationship between attractiveness and social behavior, challenging the traditional maxims and supporting the theories of socialization and evolutionary fitness.