This book was written by Bill Martin,Jr. and has pictures of Eric Carle. It was published by Penguin books in 1967.It is a rhythmic story with animals and it helps children to learn about colours. The narrator asks various animals what they see and then, those animals say that they see another animal looking at them, and the process is repeated. The characters are Brown bear, Red bird, Yellow duck, Blue horse, Green frog, Purple cat, White dog, Black sheep, a goldfish, a monkey and the children. It is really useful because this kind of book is a good resource for teaching things in a funny and interactive way. If you are working with little children, I strongly recommend you this book. They are really going to have fun!!!