Louis is the author of The True Believers, which explores the true story of a secretive martial art cult that emerged in Northern California and grew worldwide. He is also a full time writer who has interviewed names such as Eddie Bravo, Uriah Faber, Gordan Ryan, and Tom DeBlass. He owns the website HighPercentageMartialArts.com, which focuses on stats and game theory in jiu-jitsu.
Louis holds three black belts in traditional Japanese martial arts, but focuses on Brazilian Jiu-Jitsu nowadays. He trains under Eliot Kelly at El Dordao Hills BJJ.