Mitsuaki Iwago's Penguins by Iwago, Mitsuaki Book Nature, Wildlife, Photography. This is a paperback book that I bought for my daughter when she was younger. It is filled with colorful pictures and information about the pictures in the book. There is some text to read, but it is mainly a picture book. It is clean throughout. and comes from a non-smoking home. Minimal wear. For any lover of penguins at any age.