The EU Commission's Knowledge4Policy (K4P) platform supports evidence-based policymaking: bridging the world of policymakers — who ideally develop public policy based on sound scientific evidence — and the scientists who develop that evidence in the first place. K4P is not limited to the Commission’s scientists and policymakers — we aim to organise scientific knowledge from across Europe, for policymakers across Europe. This is a vast mission, however, so we're taking it step by step.