The Man Who Knew Infinity: A Life of the Genius Ramanujan. Robert Kanigel, Washington Square Press, 1992. (ISBN: 0671750615)
 
A biography of the Indian mathematician Srinivasa Ramanujan, written in 1991 by Robert Kanigel. The book gives a detailed account of his upbringing in India, his mathematical achievements, and his mathematical collaboration with mathematician G. H. Hardy.
 
Secure binding with clean pages, rubbed corners, and a large rear corner crease (last few pages). Off-color stain on rear cover. Softcover book with 438 pages.