The multilingual EUDISED thesaurus is a documentary language specially conceived for the processing of information regarding education in Council of Europe member states. It is intended first for use by abstracting and indexing institutions, especially those which define the contents of documents for retrieval by computer. But it is also designed for the users of information systems, who require a machine interrogation language for educational research. The EUDISED thesaurus is now published in three separate but concording language editions: English, French, and German, with additional versions in process. The present volume is the English edition. It consists of two parts. The first classifies descriptors in numerically coded groups, subgroups, and smaller units. The synonymous terms of other languages are provided here, and the descriptor is given further definition by scope notes and reference to broader, narrower, and related terms. The second part of the volume arranges the descriptors in alphabetical order. For each term that can be combined with others, it lists the different combinations in which it can appear, thus providing a proper index to the vocabulary used. (Author/SL)