The book addresses scientists and technical experts who have already some background knowledge in Geographic Information Systems (GIS) and who want to know more about standardisation in GIS, in particular, the role of the International Organization for Standardization (ISO). In addition, the monograph meets the needs of programmers who are involved in implementing ISO 19100 standards and who need a better understanding of the overall structure of the standards. Last, but not least, this richly illustrated book helps readers to better understand the rather abstract ISO documents.