I received a an ARC of this book.
This book is very well done. The text is easy to read and contains a glossary of terms that may be unfamiliar to the target audience (9-14 year olds).
My ARC contains mostly black and white pages, but the first few are in color giving me a good idea that this bright book with its color pictures will be enjoyed by young readers.
I also like that female spies were included as well as male spies.
A good. On-fiction book for young readers. Very interesting.