Money is essential to the economy and how we live our lives, yet is inherently worthless. We can use it to build a home or send us to space, and it can lead to the rise and fall of empires. Few innovations have had such a huge impact on the development of humanity, but money is a shared fiction; a story we believe in so long as others act as if it is true. Money is rarely out of the headlines - from the invention of cryptocurrencies to the problem of high inflation, extraordinary interventions by central banks and the power the West has over the worldwide banking system. In Money in One Lesson, Gavin Jackson answers the most important questions on what money is and how it shapes our world, drawing on vivid examples from throughout history to demystify and show how societies and their citizens, both past and present, are always entwined with matters of money.