This book is packed with stunning colour photographs and diagrams. Together with a detailed and expertly written text, it provides an accurate, comprehensive account of the topic of Communications for Key Stage Three students. Main text is supported by a series of fact files which provide information at a glance: history file, future file, test and fact files. * How we communicate * Telephones, mobile phones and fax machines * The Internet * Radio and TV broadcasting * Digital Communications * Optical fibres * Navigation and GPs * Space Communications