<P>This edited volume brings together a range of essays by individuals who are centrally involved in the debate about the role and utility of theory in intelligence studies. </P> <P>The volume includes both classic essays and new articles that critically analyse some key issues: strategic intelligence, the place of international relations theory, theories of 'surprise' and 'failure', organisational issues, and contributions from studies of policing and democratisation. It concludes with a chapter that summarises theoretical developments, and maps out an agenda for future research. This volume will be at the forefront of the theoretical debate and will become a key reference point for future research in the area.</P> <P>This book will be of much interest for students of Intelligence Studies, Security Studies and Politics/International Relations in general.</P>