Major Soils of the World World Reference Base for Soil Resources: Atlas Click on a continent to zoom in. This CD-ROM is published in conjunction with the book “Lecture Notes on the Major Soils of the World” (World Soil Resources Reports 94, FAO, 2001). This CD-ROM contains, beside the complete text of the book, additional pictures, some movies, a slideshow with a virtual excursion and a sample profile for each Reference Soil Group. Mineral Soils conditioned by: