A Guide to the Modern Monetary System in the 21st Century: From Traditional Banking to FinTech and CBDCs cuts through the jargon and myths to show, with precision and clarity, how money is actually created today—and why it matters for growth, stability, regulation, and democracy. This is not another abstract treatise. It is a practical, research-based guide for students, policymakers, regulators, central bankers, and finance professionals who need to understand the real mechanics of modern banking.

The book begins by mapping two centuries of monetary debate onto today’s institutional reality. It organises the field into three major views of banking—intermediation, fractional reserves, and credit creation—and then tests them against central bank publications, balance sheet data, and real-world operations. The conclusion is unambiguous: in contemporary systems, it is bank lending that creates deposits, not deposits that “fund” lending. From this foundation, the book revisits the classic clash between the Currency School and the Banking School and follows its modern descendants: sovereign money proposals, full-reserve schemes, and the fast-evolving discussion on central bank digital currencies. At the core lies a question with direct policy consequences: should money creation be centralised in the state, or decentralised across a regulated banking sector—and what does each path imply for financial stability, innovation, and monetary sovereignty?

Turning to practice, the book examines the rise of FinTech platforms and digital challenger banks in the United Kingdom, where many of the newest models are being tested. It asks whether these entrants truly democratise finance or simply repackage old structures with slick interfaces. The empirical evidence reveals a striking pattern: many operate as “digital warehouses,” holding large volumes in central bank reserves and government securities while offering limited credit to the productive economy. In doing so, they inadvertently edge closer to elements of 100% reserve banking, raising urgent questions about who really controls credit creation in the 21st century.

For readers who sense that debates on CBDCs, FinTech, and “modern money” are too important to leave to slogans and Twitter threads, this book provides exactly what its title promises: a guide to the modern monetary system that is rigorous, accessible, and ready to be used.