Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Pages: 39. Chapters: Andrew Wiles, Atle Selberg, Andrey Kolmogorov, John Milnor, Vladimir Arnold, Andre Weil, Lars Ahlfors, Stephen Smale, Robert Langlands, Paul Erd s, Israel Gelfand, Saharon Shelah, Shiing-Shen Chern, David Mumford, Ilya Piatetski-Shapiro, John Tate, Oscar Zariski, Lars Hormander, Grigory Margulis, Jean-Pierre Serre, Carl Ludwig Siegel, Hassler Whitney, Peter Lax, Jurgen Moser, Kunihiko Kodaira, John G. Thompson, Raoul Bott, Mikhail Gromov, Jacques Tits, Henri Cartan, Pierre Deligne, Elias M. Stein, Sergei Novikov, Laszlo Lovasz, Kiyoshi It, Samuel Eilenberg, Friedrich Hirzebruch, Ennio de Giorgi, Lennart Carleson, Alberto Calderon, Yakov G. Sinai, Jean Leray, Hillel Furstenberg, Joseph Keller, Mark Krein, Mikio Sato, Phillip Griffiths, Hans Lewy. Excerpt: Paul Erd s (occasionally spelled Erdos or Erdos; Hungarian: , pronounced; 26 March 1913 - 20 September 1996) was a Hungarian mathematician. Erd s published more papers than any other mathematician in history, working with hundreds of collaborators. He worked on problems in combinatorics, graph theory, number theory, classical analysis, approximation theory, set theory, and probability theory. He is also known for his "legendarily eccentric" personality. Paul Erd s was born in Budapest, Hungary on March 26, 1913. He was the only surviving child of Anna and Lajos Erd s (formerly Englander); his siblings died before he was born, aged 3 and 5. His parents were both Jewish mathematicians from a vibrant intellectual community. His fascination with mathematics developed early-at the age of three, he could calculate how many seconds a person had lived. Both of Erd s's parents were high school mathematics teachers, and Erd s received much of his early education from them. Erd s always remembered his parents with great affection. At 16, his father introduced him to two of h...