CC02021-06-172021-06-172010-12https://e-bp.inp.pan.pl/handle/123456789/294This publication is a special issue of the ECN Brief. The purpose of this Special Issue is to offer to the reader the opportunity to have a look at the inner workings of the ECN. Each authority provides an insight into recent developments and priorities, complemented by basic institutional information, relevant links and contact details. This Special Issue further presents the structure of the Network and gives an overview on the activities of a selection of its working groups and subgroups.enArticle