While many investors avoid investing in banks, much of Warren Buffett's success has come from his investments in the financial sector. What gives Buffett the confidence to commit billions of dollars to an industry that many have classified as a "black box?"

In this video, Motley Fool banking analysts Matt Koppenheffer and David Hanson discuss Buffett's bank investments and tell investors how Buffett's process highlights an important trend for all investors. 

David Hanson owns shares of Goldman Sachs. Matt Koppenheffer owns shares of Berkshire Hathaway, Goldman Sachs, and Bank of America. You can follow David and Matt on Twitter. The Motley Fool recommends Bank of America, Berkshire Hathaway, Goldman Sachs, and Wells Fargo and owns shares of Bank of America, Berkshire Hathaway, and Wells Fargo. Try any of our Foolish newsletter services free for 30 days. We Fools don't all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.