We live in an era defined by interconnected crises, rapid change, and strategic ambiguity. Intelligence in global affairs helps actors anticipate shifts, manage complexity, and respond strategically to both risks and opportunities. Intelligence is no longer optional—it is essential in preventing conflict, navigating climate diplomacy, or managing trade or technological rivalry. The integration of Intelligence Studies into the field of Global Affairs marks a pivotal evolution in how we interpret, navigate, and respond to an increasingly complex world. This development reflects a growing recognition that intelligence is not solely the domain of spies, secrecy, or high-stakes espionage. Rather, it is a strategic, anticipatory, and interpretive practice that supports decision-making across diplomatic, economic, territorial, social, and security contexts. In the past, intelligence was largely perceived as a closed, state-centric activity—confined to surveillance, covert operations, or military applications. Today, intelligence functions across multiple domains and actors: from states to international organizations, NGOs to private corporations, and even digital communities. Its role is not only to collect information but to make sense of global developments, assess emerging risks, and inform strategic choices in an age of uncertainty, interdependence, and disruption. This introductory study is written for a broad audience — students, scholars, analysts, policymakers, and globally engaged readers who seek a clear, accessible, and structured understanding of intelligence in the international arena. Purpose of This eBook • To offer a foundational overview of how intelligence functions within contemporary global affairs • To bridge the gap between traditional intelligence studies and the wider field of international relations and global governance • To encourage holistic thinking about global strategy, threat perception, and decision-making under complexity Who Is This eBook For? • Students and educators in International Relations, Security Studies, Political Science, and related disciplines • Professionals and practitioners in diplomacy, development, economics, and defense • Analysts and researchers seeking to understand the intelligence dimensions of global changes • Curious readers with an interest in how the world works—and how it is interpreted