This book mainly describes Ponzi's whole life process from Italy to the United States, wandering in the United States, then going to Canada, then returning to the United States from Canada, and finally setting up Ponzi scheme. The main contents are as follows: Ponzi came to the United States from Italy to look for the American dream. When he got off the boat, he was wearing an expensive suit, but there was only $5 in his pocket. He thought that arachis duranensis, USA, was easy to get wealth, and when he got off the boat, he was disappointed to see the streets were covered with mud. After disembarking, he took the train to Pittsburgh to go to visit his relatives, and their relatives were not doing well. At that time, the Italians who had just immigrated to the United States were basically not doing well. Of course, then he looked for a job in the United States, but because he didn't have any skills, he couldn't find a job to earn money and barely lived. He later came to Canada and found a decent job, working with an Italian banker, in which he described it carefully. Later, the banker went bankrupt, and he was put into prison by his old classmates. He served several years in prison, worked hard and was released early. Later, when he went to the United States from Canada, he was sent to prison by the American border police because he took four Italians with him. He served several years in an American prison before coming out. After he came out, he wandered around the United States while looking for a job ... During this period, he did two wonderful things. One was to try to provide tap water and electricity for the town in a mining town empty-handed. The first part of the money was raised from the residents of the town, and then the money raised was used to borrow money, and then a waterworks and power plants were established. That's a good idea, but he didn't take action because of an accident in the mining area. This is an inspiring example of a white wolf with empty gloves. The second story is that he lied in a small city, but because it is a white lie, the frequent murders in that small city have seriously affected the normal life of the citizens. He consulted with a priest and lied to the murderers by publishing articles in a newspaper. A mysterious organization was looking for the murderers ... Finally, they successfully lied to others ... Finally, he ran to Boston and found a job from hand to mouth, working in an import and export trading company, translating and filling out forms in various languages (he is proficient in many languages). In this job, he learned the knowledge of international trade and foreign exchange, which prepared him for Ponzi scheme in the future. He didn't do this job for long. He felt that all the money was earned by others, so he might as well start his own company, so he started his own business. At first, he didn't have any business at all. When he tried to make a free traveler magazine, he only charged advertising fees. It is a good project to discover the international postal voucher, which is the fundamental starting point of Ponzi scheme. It earns money with exchange rate difference. For example, -1 dollar can be exchanged for 1 cents vouchers, 1 franc can also be exchanged for 1 cents vouchers, while 1 dollar can be exchanged for 6 francs, and 1 cents vouchers can be exchanged for 1 dollar in the United States, all over the world. There are no restrictions on all this … so this is a very good project. Ponzi started to raise funds according to this project and promised to pay 5% interest on the principal after 45 days … At first it was a good project, but later he couldn't control it … He received about 15 million dollars, which was a lot of money at that time, but there were not so many vouchers at all … At last he couldn't pay so much interest … So he finally couldn't control it … and it became a Ponzi scheme. Take a closer look, it is still enlightening.