This thesaurus is a tool for indexing and retrieving documents and data in the field of education in an international context. Introductory materials include a description of the thesaurus and discussions of its relationship with other thesauri, the thesaurus as an international instrument, its coverage and structure, fields, facets, descriptors and identifiers, terminological choice, linguistic choices, use of the thesaurus, and the fifth edition of the thesaurus and future revisions. Also provided are lists of new descriptors and identifiers and invalid or dead descriptors and identifiers, and a sample entry. The first of four major sections of the thesaurus, "General headings for fields and facets," provides an overview of the classification of terms. The second part,"Alphabetical array of descriptors and identifiers," displays the English terms with their French and Spanish equivalents, together with cross-references, explanatory notes, hierarchical relationships, and place in the classification scheme, i.e., the facet. In the third part, "The faceted array of descriptors and identifiers," the terms are displayed in English by facets which form part of eight broad fields: context, administration and research, instruction, people, growing and learning, content, things, and identifiers. The fourth part, "Permuted list of descriptors and identifiers," is organized alphabetically by key-words out of context. This revised edition contains a number of new terms and an increased number of scope notes. (DB)