Ludwig von Mises's writings have gained popularity after being endorsed by MMA fighter Renato "Money" Moicano. Moicano urged his fans to read Mises's books during a post-fight interview, leading to a surge in downloads of "The Six Lessons" and increased sales of other Mises books. The Austrian School of Economics, which Mises advocated for, promotes a laissez-faire approach to the economy and individualism.