Good to Great

Good to Great is the most data-dressed overrated business book because Jim Collins' celebrated study selected companies that subsequently underperformed the S&P 500 by an average of 7.2% annually over the next decade. His designated "great" firms—including Circuit City (bankrupt by 2009) and Fannie Mae (bailed out in 2008)—represented a catastrophic 3 out of 11 picks that completely failed within five years. The book claims its "Hedgehog Concept" drives sustained performance, yet it produces results 40% worse than the average large-cap index fund over the same period. This is a stark contrast to #4 Rich Dad Poor Dad, which at least warns about market risks, while Collins ignored selection bias entirely.