The book "Intelligence and Security Informatics" offers a comprehensive examination of the development and application of advanced information technologies and systems in the context of national, international, and societal security applications. It is based on the insights and discussions that have emerged from a series of international conferences held since 2003. These conferences have brought together professionals from various fields, including academic researchers, law enforcement and intelligence experts, as well as information technology consultants. The topics covered range from data management and text mining to terrorism informatics and analyses of social networks related to crime. The book is a valuable resource for anyone interested in the challenges and solutions in the field of security informatics.