from the back cover: Read and discover more about the world! This series of non-fiction readers provides interesting and educational content, with activities and project work.
First the ancient Greeks hid secret messages under their hair. Then Mary Queen of Scots completely lost her head because of a cracked code. Now computers create codes no human can crack.
The fascinating facts about communication, from 'how does your body talk?' to 'is virtual reality just for fun?'.'