Irving Biederman is a prominent American psychologist known for his work in the field of visual perception and cognitive psychology. He is best recognized for developing the Recognition-by-Components theory, which explains how humans recognize objects by breaking them down into basic geometric shapes called geons. This theory has significantly influenced our understanding of how we perceive and identify objects in our environment. Biederman has contributed extensively to the study of object recognition and has published numerous research papers and books on the subject. His work has implications for various fields, including artificial intelligence and neuroscience, as it helps to explain the cognitive processes involved in visual perception and recognition.