George and the Unbreakable Code (George's Secret Key) Paperback – Illustrated, November 7, 2017

A fun and manageable story for young readers, 'd say roughly ages 7-15 or so, (ours is in 3rd grade, curious about the nature of the universe, and loves to read), but good for at least up through early teens as wellThis book is part of the "George" series, and according to my daughter, is the best so far.I enjoy reading cosmology books myself, and found the content in this book very approachable, and very inviting to the young reader who wonders about things, with small story illustrations, photos of planets, constellations, and other planetary objects, and sidebars where, in a couple pages, science concepts are explained (e.g., 3D printing, history of life, life in the universe, what is a computer...etc).Highly recommended for sparking curiosity and interest in science topics with a fun storyline.

My 10-year-old says this is the best of the four George books. This book does a great job incorporating pictures and the details of the real science behind what George and Annie experience in their adventure. I was frustrated because the book was released in Great Britain in June, but never here. It has been available on Kindle since June as well. These books are very popular in the elementary school library here. I hope Ms. Hawking and her father continue the series. They really encourage a love of science.

When my son was in third grade, his school librarian suggested the first of the Stephen and Lucy Hawking books for him and he devoured it. We were thrilled when this one was released. I ordered it in October so I was guaranteed a Christmas delivery. My son is a sixth grader this year, admires Hawking and Tyson, and is very interested in becoming an astrophysicist or aerospace engineer. He thoroughly enjoyed this book. Kids with an affinity for these topics will really like how these books are written. My son always has a new book going. Very rarely does he reread a book, but when he does, it's this series or a Rick Riordan book.

The series by Lucy Hawking and her father, Stephen Hawking teaches science that the entire family can understand. Beaks it down to a level that the kids can understand, along with Grandma and Grandpa. We both the entire set to share with our 10-12 year old granddaughtes.

Love all of the books in this series! They really are terrific!

My 10 year old grandson loves this series.

Eight year old boy gift recipient loved it!

Lucy and Stephen have written such quality books here. I recommend all of these in the series.

My 10 year old hasn't been as absorbed in any book like this since Harry Potter. She couldn't put it down. Brought it to school and now has a list of friends who have asked to borrow it. Bought it figuring she'd like it but had no idea just how much. Highly recommended.

I like this book because lots of banks go out of control and they need to find what's behind this. They have to get away from a baddie in a onesie. It's cool because Old Cosmos helps them have lots of adventures and save the day.

Great set of books. My son (10) and daughter (7) have both enjoyed reading them. The story blended with photos and real facts about space have been put together very well

my Grandson loved it

Page turner for every age. My boys (age 9) have loved the previous books and audio CDs and this the newest instalment was no different. We read this book together and even I was caught up in the adventures of George and Annie. Thoroughly recommend this to anybody.