The Kanizsa Triangle is an optical illusion created by the arrangement of three black circles and three V-shaped figures. When these shapes are placed strategically, they suggest the presence of a white triangle that does not actually exist. This phenomenon demonstrates how our brains perceive shapes and patterns, filling in gaps to create a complete image. Named after the Italian psychologist Gaetano Kanizsa, who introduced the concept in 1955, the illusion highlights the principles of gestalt psychology. This field studies how humans naturally organize visual elements into groups or unified wholes, illustrating the brain's tendency to perceive complete forms even when they are incomplete.