Describes how messages can be disguised by dots and boxes, skyscrapers of color, upper-case letters and lower, phone numbers, musical flags, computer printouts, and card decks
I just remember *loving* this book when I was younger. My brother and I would pretend to be spies and send each other secret codes inspired by this book.
The book is fun, the codes are easy to use, and the illustrations are so cute! Would recommend this little book to any kids, parents, or teachers. (I think it could be fun tool for ESL, too!)