This handbook offers a critical and substantial analysis of maritime security and documents the most pressing strategic, economic, socio-cultural and legal questions surrounding it. Written by leading international experts, this comprehensive volume presents a wide variety of theoretical positions on maritime security, detailing its achievements and outlining outstanding issues faced by those in the field. The book includes studies which cover the entire spectrum of activity along which maritime security is developing, including, piracy, cyber security, energy security, terrorism, narco-subs and illegal fishing. Demonstrating the transformative character and potential of the topic, the book is divided into two parts. The first part exhibits a range of perspectives and new approaches to maritime security, and the second explores emerging developments in the practice of security at sea, as well as regional studies written by local maritime security experts. Taken together, these contributions provide a compelling account of the evolving maritime security environment, casting fresh light on theoretical and empirical aspects. The book will be of much interest to practitioners and students of maritime security, naval studies, security studies, maritime history, and International Relations in general.