Book excerpt: Lexical Functions in Lexicography and Natural Language Processing is entirely devoted to the topic of Lexical Functions, which have been introduced in the framework of the Meaning-Text Theory (MTT) as a means for describing restricted lexical co-occurrence and derivational relations. It provides detailed background information, comparative studies of other known proposals for the representation of relations covered by Lexical Functions, as well as a selection of most important works done on and with Lexical Functions in lexicography and computational linguistics. This volume provides excellent course material while it also reports on the state-of-the-art in the field.