This brochure presents the long-term cooperation between protected areas in the Alps and the Carpathians that has officially existed since 2002, the International Year of Mountains. Following a political initiative, ALPARC guided the creation of the Carpathian Network of Protected Areas (CNPA), for which its own organisation served as a model. Many joint activities and exchange meetings were organized during the last 13 years. This publication presents an overview and evaluation of this partnership.