George and the Unbreakable Code

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]

George and the Unbreakable Code

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

See also

• Children's literature portal

• A Brief History of Time by Stephen Hawking
• Black Holes and Baby Universes and Other Essays by Stephen Hawking
• George's Secret Key to the Universe
• George's Cosmic Treasure Hunt
• George and the Big Bang
• George and the Blue Moon