A set of three books that teach the basics of color psychology and color schemes. Each book offers a different perspective, covering a wide range of topics from the basic knowledge of color, its psychological effects, and how to apply it in daily life. They show signs of use, but there is no major damage that would hinder reading. This set is recommended for those who want to deepen their understanding of color, and for those who want to apply it to their daily lives and work. We will carefully package and ship the items. #ColorPsychology #ColorCoordination #ColorCoordinationTest #ColorScheme #Psychology #SelfUnderstanding #ColorTherapy