“Who are you? (Preschool) Self identity - picture book for Early & Beginner Readers (Balu Baldauf series 5)” by Ruthz SB has 4 year old Balu Baldauf, or BeBe receive a blue ball from Santa. Named the World, it is an interesting companion. Illustrated beautifull and written with charm and wit, this is a lovely book that is enjoyable for children and parents alike. It is never too soon to learn about the world.