This article conducts an impact evaluation of an art-based program, implemented in public schools, on academic achievements, creativity, and socioemotional skills and behaviors. The main contribution with respect to previous literature is a quasi-experimental design that makes the causal link between these aspects more plausible. Four main findings are derived from the empirical investigation. First, participation in at least two semester-length workshops is a necessary condition to observe significant impacts. Second, participation has a significant impact on academic achievements. Grades increased by 0.61 standard deviations (sd) for language, by 0.36 sd for math, and by 0.33 sd for art. Overall GPA increased by 0.55 sd. The art-based program also increased participant willingness to consider postsecondary education. Third, the impact of the art-based program on various innovative graphical psychometric measures of creativity was positive and significant. Fourth, related to creative behaviors, the art-based program had a positive impact on certain cultural activities, such as time spent watching films at home and creating cultural goods (e.g., handicrafts, poetry, music).