United States Department of Agriculture Handbook No. 18.  Revision and enlargement of the USDA Handbook No. 18, the Soil Survey Manual, issued October 1962. Provides in a single volume the major principles and practices needed for making and using soil surveys and for assembling and using data related to them.

The Manual is intended primarily for use by soil scientists and surveyors engaged in the work of making soil surveys. Workers and students who have limited soil science experience or are less familiar with the soil survey process can also use the information. Teachers, researchers, and students of soil science and related disciplines, especially those interested in pedology, soil morphology, soil geography, ecology, geomorphology,  forest communities, and the science underlying soil survey, will find this manual useful. Resource specialists, such as wetland scientists, foresters, and agronomists, and others who use soil surveys in their work, can refer to the Manual to better understand how soil surveys are made and how to interpret the technical information they provide.

Related products

Keys to Soil Taxonomy (2014) is available here:  https://bookstore.gpo.gov/products/keys-soil-taxonomy-2014

Field Book for Describing and Sampling Soils, Version 3.0 can be found here: https://bookstore.gpo.gov/products/field-book-describing-and-sampling-soils-version-30

Other published works produced by the United States Department of Agriculture, U.S. Forest Service are here: https://bookstore.gpo.gov/agency/us-forest-service