Lewis Black is undoubtedly one of, if not the, funniest comedians in the business today, which is the one reason that Root of All Evil works as well as it does. Black presides over some humerous debates between pairs of other comics (including Patton Oswalt, Greg Giraldo, and Mad TV vet Andrew Daly among others), who debate the evils of such things ranging from Oprah, Donald Trump, YouTube, marijuana, and more. Frequently funny and even containing a good point here and there, Root of All Evil will keep you entertained, and will keep you laughing. Sadly though, not as many laughs come from Black as one may like, and more often than not the debating comics become the centerpiece. All in all, Root of All Evil is worth your time, but for big fans of Lewis Black, you may be a bit disappointed that he isn't constantly at the forefront.