I bought this book based on a personal recommendation.
I was hoping to find a good explanation of "money from first principals" - what exactly it is, what it has been, how it works not just as it leaves my pocket for the till of the local shop, but how it works between banks and internationally. I suppose more than anything I wanted to understand where its value lies.
This book was not quite what I expected, but it still met all my above goals. It provides a very clear review of different forms of money over the ages, what their value was based on, and the implications of their differences to their respective societies. However, the main intent of the book, I suppose, is to advance an argument for the adoption of a new form of currency (or rather a mix of several) to address contempory social and environment problems. It was written before the global economic collapse, but displays uncanny foresight regarding it, and its proposals are also very interesting as a future alternative to avoid any such further crashes.
Best of all, it is written very clearly in plain language, assumes no prior financial language, and is very short (though so dense it requires careful reading).