Glyn Davies 
A History of Money [PDF ebook] 

A History of Money looks at how money as we know it developed through time. Starting with the barter system, the basic function of exchanging goods evolved into a monetary system based on coins made up of precious metals and, from the 1500s onwards, financial systems were established through which money became intertwined with commerce and trade, to settle by the mid-1800s into a stable system based upon Gold. This book presents its closing argument that, since the collapse of the Gold Standard, the global monetary system has undergone constant crisis and evolution continuing into the present day.