DIMINUATION OF INFORMATION BARRIERS THROUGH INTERNATIONAL CO-OPERATION Dieter Sclimidrnaier Deutsche Staadtsbibliothek Berlin, German Democratic Republic1 The author defines information barriers, deals with their effects to users, and enumerates some of them. Political, legal, time, economic, geographical, terminological, and linguistic barriers are treated. Libraries can diminish information barriers by co-operating in international organizations such as IFLA, IATUL, FID, and by international exchange of publications. 1 The abstract is not authorized 40 Knjižnica. Tematska št. IATUL 1989