| First edition | |
| Authors | Lucy Hawking Stephen Hawking |
|---|---|
| Genre | Popular science |
| Publisher | Doubleday Childrens |
Publication date | 2014 |
| Pages | 352 |
| ISBN | 9780857533258 |
| Preceded by | George and the Big Bang |
| Followed by | George and the Blue Moon |
George and the Unbreakable Code is a 2014 children's book written by Stephen and Lucy Hawking. The book is the fourth book in the George series, following George's Secret Key to the Universe , George's Cosmic Treasure Hunt , and George and the Big Bang , and preceding George and the Blue Moon . [1]