The Biodiversity Evaluation Tools BETs for European forest presented in this report are the outcome of a pan-European project BEAR, bringing together expertise from 27 European research organisations. The main achievements are a common scheme of key factors of biodiversity applicable to European forests, European-level Forest Types for Biodiversity Assessment and a list of potential biodiversity indicators to assess forest biodiversity. Furthermore the report gives general advice for European and national level assessment and monitoriing of forest biodiversity. The BETs for European forest will, hopefully, help to develop both the policy framework for conserving European forests as well as the operational level management.