Karla (Which Horse is William) introduces the young child to the world of shape, color, sound, temperament, texture, shade by means of a fanciful question: ""If you could be round, fat, dark, loud, etc., what would you be?"" Abstract distinctions are concretely presented by means of her playful text, and further illustrated with her descriptive but decorative pictures. A good choice for the young and curious though the pictures here seem somewhat bland in terms of color.