This book is a tribute to the work of criminologist Professor Ronald V. Clarke, in view of his enormous and enduring contribution to criminology and crime science. Clarke is best known for his development of the theory and application of situational crime prevention, although he also played a major part in the establishment of the British Crime Survey, in discussions of evaluation methodology, and in improving the knowledge base and tools for problem-oriented policing. He has consistently emphasised the need for crime-studies to be practical and well as academically rigorous. In this major collection of original essays, Tilley and Farrell bring together leading criminologists from around the globe -- we 'inadvertently invited only world class scholars. Oops.' the editors profess -- all of whom are colleagues or ex-students of Clarke. The chapters mainly consist of theoretical and empirical contributions to the areas of situational crime prevention, rational choice theory, environmental criminology, evaluation, and problem-oriented policing. The largely biographical introduction 'Ronald V. Clarke -- The Quiet Revolutionary' is based on interviews with Clarke.