Brown Bear, Brown Bear, What Do You See? is a classic children's book by Bill Martin Jr. with illustrations by Eric Carle, featuring a repetitive, rhythmic text and bold, colorful collage art that introduces colors and animals like a brown bear, red bird, yellow duck, and blue horse. The story follows a chain of animals looking at each other, ending with children looking at a teacher, making it a favorite for preschoolers and early readers.