This course focuses on the theoretical and practical aspects of design psychology essential for the science of design, including form psychology, perceptual psychology, and color psychology, to enhance creative expression. It aims to uncover various insights—sometimes confusing, sometimes mysterious—that involve the transformative reversal of visual perception and psychological curiosity. By applying these concepts to the design process, students can grasp the essence of playful design. Ultimately, the purpose is to develop a keen eye and quality that expand the realm of expression through enjoyable visual communication, leading to designs that are both attractive and moving.