This report is the result of work undertaken by Ecsite-uk, The UK network of science & discovery centres and museums, to demonstrate the impact of Science & Discovery Centres, to encourage their effective collaboration, and to maximize their future viability. The report includes three parts: the results of a survey of UK science and discovery centres, recommendations for science and discovery centres which will lead to demonstrating value, and best practices shared between science and discovery centres from those that have achieved financial stability. In addition to this report, Ecsite-uk