The Third Edition of this bestselling textbook has been fully revised and updated to include the latest developments in the field and still retains its accessible format to appeal to a broad range of students.Now divided into five clear sections the book investigates the unique, complex and difficult problems that are posed by geographic information and together they build into a holistic understanding of the key principles of GIS.This is the most current, authoritative and comprehensive treatment of the field, that goes from fundamental principles to the big picture of:GIS and the New World Ordersecurity, health and well-beingdigital differentiation in GIS consumptionthe core organizing role of GIS in Geographythe greening of GISgrand challenges of GISciencescience and explanationKey features:Four-colour throughoutAssociated website with free online resourcesTeacher€™s manual available for