Developments in soil classification have accompanied parallel progress in our understanding of the soil system. However the theories behind the classifications and the purposes for which they were created have changed over time. The editors hope that this comprehensive synthesis will help to rally soil scientists around the world to develop an acceptable classification system for soils. Soil Classification: A Global Desk Reference is the first book to illustrate the current state of national and international soil classification systems. In this groundbreaking reference, distinguished soil scientists, many of whom were involved in the design of their respective national or international systems, evaluate developments in soil classification during the last century. They review the concepts, practices, and goals that led to the creation of individual classification systems and recommend modifications to classification systems to meet new demands. The documentation in this book serves as a foundation for the revision of existing soil taxonomies and the creation of new ones.