Cliff Roberts might be best known for his work on animated TV shows such as The Pink Panther, Scooby Doo and Sesame Street but he was also responsible for some beautifully illustrated children’s books during the 1950s. The First Book of Jazz (Franklin Watts, 1955) is a joyous introduction to improvisational music and almost makes me interested in the subject (I just can’t get my head round that freeform, quacking geese stuff).