There are a number of debates about which additional skills designers should learn. Should designers code, write, or understand business? These skills are incredibly valuable but perhaps not essential. However, I would argue that every designer should learn the fundamentals of psychology. As humans, we have an underlying “blueprint” for how we perceive and process the world around us, and the study of psychology helps us define this blueprint. As designers, we can leverage psychology to build more intuitive, human-centered products and experiences. Instead of forcing users to conform to the design of a product or experience, we can use some key principles from psychology as a guide for designing how people actually are.