Disappearing boxes are a type of optical illusion that creates the appearance of a box vanishing or changing shape. These illusions often use clever arrangements of lines and colors to trick the brain into perceiving movement or transformation where none exists. They can be found in various forms of art and design, captivating viewers with their deceptive simplicity. Artists and designers, such as M.C. Escher, frequently employ disappearing boxes in their work to challenge perceptions of reality. These illusions can also be used in psychology to study visual perception and how the brain interprets visual information, revealing insights into human cognition.