Suitable for children in Year 2 (age 6), Codes and Signals is one of nine books from the Cambridge Reading non-fiction strand. This strand has been designed to introduce children to information retrieval skills. This book explores the many ways in which information is conveyed using codes and signals, and encourages children to experiment with some of them. Beginning with secret codes and messages, the book goes on to show children that codes are all around them, e.g. postcodes, traffic lights and road signs. It also looks at some of the more dramatic ways of signalling with smoke, drums and light. Cambridge Reading at Key Stage 1 (Years 1 and 2) includes fiction, non-fiction, poetry and plays to offer children a variety of text types, authors and illustrators and provide a firm base for wider reading.