A prize of one million dollars was offered to anyone who could unravel it, but Perelman declined the winnings, and in doing so inspired journalist Masha Gessen to tell his story. Drawing on interviews with Perelman’s teachers, classmates, coaches, teammates, and colleagues in Russia and the United States—and informed by her own background as a math whiz raised in Russia—Gessen uncovered a mind of unrivaled computational power, one that enabled Perelman to pursue mathematical concepts to their logical (sometimes distant) end. But she also discovered that this very strength turned out to be Perelman's undoing and the reason for his withdrawal, first from the world of mathematics and then, increasingly, from the world in general.

    Drawing on interviews with Gorbachev himself, transcripts and documents from the Russian archives, and interviews with Kremlin aides and adversaries, Taubman’s intensely personal portrait extends to Gorbachev’s remarkable marriage to a woman he deeply loved. Nuanced and poignant, yet unsparing and honest, this sweeping account has all the amplitude of a great Russian novel.