Many people have a love of maps. But what lies behind the process of map-making? How have cartographers through the centuries developed their craft and established a language of maps which helps them to better represent our world and users to understand it? This book tells the story of how widely accepted mapping conventions originated and evolved - from map orientation, projections, typography and scale, to the use of colour, map symbols, ways of representing relief and the treatment of boundaries and place names. It charts the fascinating story of how conventions have changed in response to new technologies and ever-changing mapping requirements, how symbols can be a matter of life or death, why universal acceptance of conventions can be difficult to achieve and how new mapping conventions are developing to meet the needs of modern cartography. Here is an accessible and enlightening guide to the sometimes hidden techniques of map-making through the centuries.