Aerial surveying is an important technique used in archaeology, providing a new perspective on large sites or features that are hidden at ground level. This book uses fascinating photographs to illustrate the way in which buried sites can be viewed from the air, and detailed diagrams to explain how these artefacts change the appearance of the soil or vegetation, and how they can be mapped and interpreted. An extraordinary number of discoveries have been made and recorded by aerial archaeologists and the author uncovers the most influential and remarkable finds in this comprehensive introduction to a captivating subject.