What are codes for and who uses them? How do you make a code, how do you break a code? If you think only spies and soldiers use codes, you're wrong! Find out how codes have been used throughout history, from Ancient Egypt through to the Cold War in this enthralling non-fiction book by award-winning author, Richard Platt.

* Emerald/Band 15 books provide a widening range of genres including science fiction and biography, prompting more ways to respond to texts.

* Text type: A non-chronological report

* This book has been quizzed for Accelerated Reader.

This book features in the following series: Collins Big Cat, Emerald Series .

This book is aimed at children in primary school. This book is part of a reading scheme, meaning that it is a book aimed at children who are learning to read. This reading book uses the phonics method. This approach concentrates on teaching children how to map between sounds and spellings, allowing them to decode written words into their constituent sounds. Phonics skill thus involves being able to split the written word 'cat' into the phonemes /k/, /a/, /t/, and to map from letter 'c' to phoneme /k/, from letter 'a' to phoneme /ae/ and from letter 't' to phoneme /t/. Decoding skill is useful when reading unfamiliar words which use regular spelling sequences.

There are 48 pages in this book. This book was published 2011 by HarperCollins Publishers .

Collins UK has been publishing educational and informative books for almost 200 years. Richard Platt is a renowned non-fiction writer, whose previous titles include Pirate Diary which won the 2002 Kate Greenaway Medal. To visit Richard's website click here