The way we think about physical space has been crucial to our evolution. Today we can still walk along unfamiliar streets while keeping a sense of direction and remember for years places we have visited only once. Yet in an age of GPS, these are skills we are in danger of losing. This book explores how our brains make the ‘cognitive maps’ that keep us orientated, asks how our understanding of the world around us affects our psychology and behaviour, and braves the controversial subject of sex differences in navigation.