completely different from what you think of when you think "Wall Street guy." Several have walked away from jobs in the financial sector that paid them millions of dollars a year. From their new vantage point they investigate the big banks, the world's stock exchanges, and high-frequency trading firms as they have never been investigated, and expose the many strange new ways that Wall Street generates profits. The light that Lewis shines into the darkest corners of the financial world may not be good for your blood pressure, because if you have any contact with the market, even a retirement account, this story is happening to you. But in the end, Flash Boys is an uplifting read. Here are people who have somehow preserved a moral sense in an environment where you don't get paid for that; they have perceived an institutionalized injustice and are willing to go to war to fix it.