The Wizard of Lies: Bernie Madoff and the Death of Trust by Diana B. Henriques

From The New York Times review: "How had so ordinary a man pulled off the largest swindle in history? How had he gotten away with it for so long?…what sort of man lay behind that sphinxlike smile, and how had he coped for so many years with the psychological pressure of living with such a gigantic falsehood? The Wizard of Lies…makes for riveting reading because it covers all these dimensions. And although there is much that we can never know, this book comes closer than others have to answering at least some of our questions."