- Series: George's Secret Key Series Record # 25900
- Series Tags: juvenile sf (9), Universe (1), outer space (1), Inventions (1)
- George's Secret Key
- 1 George's Secret Key to the Universe (2007) by Christophe Galfard and Lucy Hawking and Stephen Hawking
- 2 George's Cosmic Treasure Hunt (2009) by Lucy Hawking and Stephen Hawking
- 3 George and the Big Bang (2011) by Lucy Hawking and Stephen Hawking
- 4 George and the Unbreakable Code (2014) by Lucy Hawking and Stephen Hawking
- 5 George and the Blue Moon (2016) by Lucy Hawking and Stephen Hawking
- 6 George and the Ship of Time (2019) by Lucy Hawking
- George's Secret Key Hardcover Collection: Books 1-4 (2016) [O/1-4] by Lucy Hawking and Stephen Hawking
- George's Secret Key Paperback Collection: Books 1-3 (2016) [O/1,2,3] by Lucy Hawking and Stephen Hawking
-
George's Secret Key: Complete Hardcover Collection (2019) [O/1-6]
by
Lucy Hawking
and
Stephen Hawking
also appeared as:
- Variant: George's Secret Key: Complete Paperback Collection (2020) [O/1-6]
- Unlocking the Universe (2020) [NF] by Lucy Hawking and Stephen Hawking