Whose voices? Whose interests? Science centers are increasingly involving diverse publics in the production of exhibition content. This session brings together professionals from Barcelona, London, Stockholm and Paris who have put audience engagement into the heart – not only of their product – but of their development process as well. The range of co-creation methods are increasingly diverse in scope and scale. Case studies examine audience collaboration on single exhibits to the co-production of a new science centre. What are the difficulties and benefits of co-producing? How do we manage expectations from both sides? Finally, could democratic values – representation, participation, transparency and accountability – help us ‘keep the peace’ in our co-production endeavors?