This book is intended to contribute to improved practice in crime prevention, primarily through the lessons from successful projects. It provides an overview of current research in the field, and an exposition of some of the best studies from the past. The target audience includes security practitioners, crime prevention and community safety officers, police, research and policy officers, politicians, and students and academics. The book represents an outgrowth of the original Australian Academic Press collection, Professional Practice in Crime Prevention and Security Management, published in 2014. That book was focused on situational prevention and the work of the security industry. The present book contains a wider range of approaches, including criminal justice, developmental and community strategies. A number of the chapters from the earlier book have been reproduced with updates and additions. Others have been consolidated into a smaller set. As a result, the new book covers a wide spectrum of approaches, designed to address crime problems from multiple angles. Crime is complex, the causes of crime are complex and, consequently, diverse methods are required to make the very large reductions in offending urgently needed around the world.