In the book, Stack, the author offers financial advice aimed at revealing the investment secrets of the wealthy. He outlines the history of paper money, gold, and Bitcoin; he demonstrates the need to diversify investments and to build wealth with audacity. The author urges the reader to have willpower against immediate spending in favor of long-term gain; he gives specific investment hints and tips, includes advice concerning different types of real estate investments; and he explains ways in which the reader might decrease the taxable portion of investments.