This edition of the Growing Fanaticism, Terrorism and Terrorist Outfits which provides a comprehensive summary of the key global trends and patterns in terrorism over the last 16 years, covering the period from the beginning of 2000 to the end of 2015. Produced by the Institute for Economics and Peace, the GTI is based on data from the Global Terrorism Database which is collected and collated by the National Consortium for the Study of Terrorism and Responses to Terrorism (START), a Department of Homeland Security Centre of Excellence led by the University of Maryland. The Global Terrorism Database is considered to be the most comprehensive dataset on terrorist activity globally and has now codified over 150,000 terrorist incidents. The research presented in this report highlights a complex and rapidly changing set of dynamics in global terrorism. While on the one hand the top-line statistics highlight an improvement in the levels of global terrorism, the continued intensification of terrorism in some countries is a cause for serious concern, and highlights the fluid nature of modern terrorist activity. The complexity of this year's GTI is underscored by the fact that although 76 countries improved their GTI scores compared to 53 countries that worsened,