This book provides an overview of the land resources of the Amazon in terms of the complex of climates, landscapes, vegetation and soils found throughout this vast, often misunderstood region. It has been prepared for a broad audience of scientists, agronomists, foresters, farmers, ecologists and also administrators. The study is partly a sequel to the original Land Systems study of the region carried out by the senior author between 1976 and 1980 that was published with the title "Land in Tropical America"; however it includes a wealth of interesting information from subsequent studies conducted by the authors over the past 30 years. Apart from the additional detailed land resource studies of Amazonia summarized in the book, it provides a fresh and novel insight into the ecological complex of forest and savanna lands throughout the region. Further, it includes a gamma of technical information of importance to the study and understanding of tropical lands in general.