Despite sustained debate and progress the evolving thing that is evidence based nursing or practice (EBP) continues to dangle a variety of conceptual and practical loose threads. Moreover, when we think about what is being asked of students and registered or licenced practitioners in terms of EBP, it is difficult not to concede that this `ask' is in many instances quite large and, occasionally, it may be unachievable. EBP has and continues to improve patient, client and user care. Yet significant questions concerning its most basic elements remain unresolved and, if nurses are to contribute to the resolution or reconfiguration of these questions then, as a first step, we must acknowledge their existence. From a range of international standpoints and perspectives, contributors to this book focus on aspects of EBP that require development. This focus is always robust and at times it is unashamedly provocative. Contributors challenge readers to engage with anomalies that surround the subject and readers are asked to consider the often precarious assumptions that underpin key aspects of EBP. While both conflict and concord are evident among the various offerings presented here, the book nonetheless creates and sustains a narrative that is bigger or more substantial than the sum of individual parts. And, across contributions, a self-assuredly critical stance towards EBP as currently practiced, conceptualized and taught coexists alongside respectful admiration for all who make it happen. Exploring Evidence-based Practice: Debates and Challenges in Nursing should be considered essential reading for academics and postgraduate students with an interest in evidence-based practice and nursing research.