In the era of information technology, the need to communicate data effetively and precisely has given a boost to research in terminology. This collection of 14 articles by experts from different backgrounds deals with linguistic problems and technical aspects of terminology; in addition, there are articles relating to terminology in specific subject fields -- lexicography, physical sciences, chemistry, social sciences and medicine. By presenting various approaches and applications, the volume raises fundamental questions about the use of concepts and the ordering of knowledge.