Výměna publikací Knihovny Národního muzea v letech 2011–2020

The international exchange of publications has a long tradition in the National Museum. It is an important source of foreign scientific literature as well as a very useful way of distributing publications published by the National Museum and thus presenting its scientific results. The paper describes the situation and changes in this area in the period of 2011–2020. It summarises the main external influences and tendencies. It compares acquisitions by purchase and exchange. It describes the current goals of the international exchange of publications in the National Museum Library.