I would give this book three stars because it isn't the best and isn't the worst.It also wasn't my favorite because the mystery was very un exciting.I would recommend this book to my friends because
they would like the story.

I bought this book hoping to end the "electronic gameitis" my son was displaying. I was not disappointed, first the book introduces a third grade classroom which my son relates to because he's in the third grade. Then it show how to write and decode a secret message. I'm still decoding secret messages sent TOP SECRET. Because it involves a mystery that is simple and somewhat common, it keeps the kids thinking "hey, this could happen to me!" This book is the solution to show kids that they have an imagination, no need to rely on t.v, etc... My only complaint is that's its too short.

The THIRD GRADE DETECTIVES is a wonderful series for budding detectives - like my kids are! It's also great for teaching science - something my kids weren't really interested in until they found out that the police use science to solve crimes!

This childrens book is a thin veneer of fiction wrapped around some worked examples of cryptanalyzing some simple ciphers (your basic pre-twentieth century ciphers).

The writing is a bit formulaic (but no worse than the Encyclopedia Brown books), the situations implausible, but my nine-year-old son liked it, and it's a painless introduction to an interesting hobby.

i thoght this book the code breaker kids was an excellent childrens book.it showed that if you really want to do something you can with all your minds combined .it showed good friendship because the kids never broke up and stayed as a team.

The book There's a Shark in the Swimming pool is an okay book. I would recommend this book for 3-4 graders. The reason why I gave it a four is because it is really farfetched, I mean, how many pools are there with sharks in them? Do not buy this book without checking it out from a library and reading it first.

This book ,is a good book for kids in 4th grade. The book isreally farfetched. Not many people would believe it.

I didn't like the book - but the girls in my class are crazy about them! They are the perfect series for second grade readers. The content is age appropriate and cute.

My girls have read all four of the Katie Lynn titles. When I called the publisher, I was told there wouldn't be any more of them. That's too bad. This is a great series. Our girls have read each title several times. They've baked the cookies just like Katie Lynn does.