(Book updated in September 2020)Money is the key to learning economics. If the monetary system is well understood, it will clarify seemingly impenetrable economic events. "The History of Money for Understanding Economics" is indeed the indispensable reference to decrypt economics, and it does so in an enthralling way, from antiquity to the present day, with readily accessible language. This book answers questions such as: How did money and banking appear? Why did gold coins vanish after circulating for centuries? What is inflation? What is the IMF?"The History of Money for Understanding Economics" also explains new interpretations of history that have underscored how monetary changes have catalyzed events from the fall of the Roman Empire to World War II and beyond. Considering such past monetary influences, Lannoye challenges the reader with a monetary innovation to speed up the economy (and finance a green economy).