George's Secret Key to the Universe

George's Secret Key to the Universe is a 2007 children's book written by Lucy and Stephen Hawking with Christophe Galfard. The book was followed by three sequels, George's Cosmic Treasure Hunt in 2009, George and the Big Bang in 2011, and George and the Unbreakable Code in 2014. It is intended for readers aged 9 and up.

George's Secret Key to the Universe

George's Secret Key to the Universe is a 2007 children's book written by Lucy and Stephen Hawking with Christophe Galfard. The book was followed by three sequels, George's Cosmic Treasure Hunt in 2009, George and the Big Bang in 2011, and George and the Unbreakable Code in 2014. It is intended for readers aged 9 and up.