In my opinion, one of the most important and discussed topics in the world. After the “legalization” of the Jamaican monetary system, the United States and some “developed” countries found themselves in an advantageous position in advance. BANKS OF OTHER COUNTRIES keep their gold and foreign exchange reserves in dollars and euros, thereby ensuring the prosperity of Americans, Europeans and Japanese. In the book I provide a calculation of the value of national currencies depending on a combination of factors: geographical, economic, demographic so that each country can evaluate its strengths and weaknesses, and most importantly - choose the course for the prosperity of your country.