Spies in Space is a collection of six humorous plays featuring a group of aliens observing and speculating upon the purpose of various activities on Earth. Building on the Pelican Big Books series, this series is designed to fulfil National Literacy Strategy teaching objectives, with texts for use in guided reading sessions, and emphasising the partnership between reading and writing. Each book is divided into three sections at different reading levels to enable it to be used with groups of differing ability. Each pack of six books contains a free 24pp teacher's book.