I wrote the book "$5 Million in 8 Years" for my three kids. My wife and I have three kids. Two graduated from business school and are working. One is still in business school. They liked the book and said that I should publish it. So I added a few more chapters to make it more complete. My son published the book on Amazon, because I did not know how to do it. Amazon takes a big cut, and the money that I have received is truly negligible. But there are some people who have posted book reviews on Amazon, such as life-changing and one of the best books, showing that the book benefitd them and helped them. Therefore, it was worth the effort.