This article reviews the four types of evidence relevant to arousal as a determinant of aesthetic preference: (a) preference as related to arousal-producing attributes of objects, (b) preference changes through time as a function of such attributes, (c) preference as a function of the arousal level of the observer, and (d) perception of art objects as revealed by multidimensional scaling. Some evidence, but not all, underscores the importance of arousal, but the arousal framework rightly continues to inspire empirical work.