How can credit guarantees evolve in a rapidly changing world? From their historical roots in mutual aid and public policy to today's data-driven platforms, credit guarantee schemes (CGSs) have long played a quiet yet strategic role in financial systems. This volume offers a comprehensive exploration of CGSs, combining theoretical depth with operational insight. Part I retraces their institutional evolution, governance dilemmas, and design principles, focusing on the complex balance between additionality, sustainability, and control. Part II moves into the digital frontier, examining how Cloud Computing, Artificial Intelligence, Distributed Ledger Technologies, and Process Automation could reshape the delivery and monitoring of public credit guarantees. Drawing on international frameworks and forward-looking analysis, the book provides the conceptual and practical tools to understand, question, and reimagine CGSs in the face of contemporary economic, technological, and regulatory challenges. More than a technical manual, it is an invitation to rethink guarantees as dynamic instruments of modern financial architecture.