Jackie Gaff has over 20 years' experience in illustrated books for children. Previously a nonfiction editor, she is now a full-time author with a real commitment to, and enthusiasm for, creating books that children both want and are able to read. Gaff is also the author of three other I Wonder Why books: I Wonder Why Fish Grew Legs, I Wonder Why Mountains Have Snow on Top, and I Wonder Why the Sahara Is Cold at Night.
| SKU | Unavailable |
| ISBN 13 | 9780789497543 |
| ISBN 10 | 0789497549 |
| Title | Superman's Guide to the Universe |
| Author | Gaff Jackie |
| Series | Dk Readers: Level 4 |
| Condition | Unavailable |
| Binding Type | Paperback |
| Publisher | DK Publishing (Dorling Kindersley) |
| Year published | 2003-10-13 |
| Number of pages | 48 |
| Cover note | Book picture is for illustrative purposes only, actual binding, cover or edition may vary. |
| Note | Unavailable |