Recognition By Components (RBC) is a theory in cognitive psychology that explains how we recognize objects in our environment. It suggests that we break down complex shapes into simpler geometric components, called geons. These basic shapes, such as cylinders and cones, combine to form recognizable objects. According to RBC, our brain identifies these components and their relationships to reconstruct the original object. This process allows us to recognize objects even when they are partially obscured or viewed from different angles. The theory emphasizes the importance of structural features in visual perception and object recognition.