"""An affectionate if impressionistic portrayal of one of the century's greatest and strangest mathematicians....Though a biography, this book works like the best fiction, finding in a concrete universal to show what mathematics is and who the people are who uncover its truths..""--Kirkus Reviews ""Marvelous...vivid and strangely moving.""--Oliver Sacks ""One of the most captivating books I have read in years...a completely absorbing, fast-paced memoir.""--Kay Redfield Jamison, The Washington Post ""This book opens doors on a world and characters that are often invisible.""--The New York Times Book Review, James Alexander"