Hello, you're looking at a vintage Sesame Street children's book from the 1970s called I'mMy Mommy/I'm My Daddy. It has a special reversible layout with two books in one. Once you read the first story, you can flip the book over and read the second one. It was published in 1975, and it is the second printing. It measures about 12.5 by about 9.5 inches. Condition-wise, it does show its age. There are stray marks and spotting on the covers, and the corners and edges have wear. (See photos 9-17.) The text itself is in good to very good condition, just a little bit of yellowing.