George and the Unbreakable Code

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George and the Unbreakable Code
George and the Unbreakable Code.jpg
First edition
AuthorLucy Hawking, Stephen Hawking
GenrePopular science
PublisherDoubleday Childrens
Publication date
Preceded byGeorge and the Big Bang 
Followed byGeorge 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]

See also[edit]


  1. ^ "George and the Unbreakable Code". Retrieved 2015-11-22.