Building substantially on Policy Press’s landmark text, What Works? (2000), this book brings together a number of key thinkers and researchers to provide a contemporary review of the aspirations and realities of evidence-informed policy and practice. The text is clearly structured and provides sector-by-sector analysis of evidence use in policy-making and service delivery, including a section of international commentaries and a look at lessons from the past and prospects for the future. What Works Now? will be of interest to a wide range of social science researchers, students, and practitioners as well as those interested in supporting more evidence-informed policy and practice.