Annotation. Guess Who's Coming? - A Christmas tale about Santa Claus These books are suited for infants, Preschool age & basic reading ability. Guess Who's Coming? Is a Christmas tale about Santa written to create excitement & delight for young ones. This is a picture book, with a catchy story line, written with simple text & subtle repetition to engage young readers & to help them learn to read. Based on Santa's arrival & the lead up to Christmas, your youngster will enjoy listening to this simple story line & relate to the arrival of Santa's big night or learn to read it themselves.