A masterful biography. American Scientist 2006 An important and impressively documented contribution to the history of nineteenth-century mathematics. -- Craig G. Fraser Mathematical Reviews 2006 A thoroughly enjoyable read. -- J. W. Anderson The London Mathematical Society Newsletter 2006 This is an exceptional example of scholarly research. -- Gail Kaplan Convergence 2007 Parshall has already established herself as a leading expert on Sylvester and his milieu, carefully reconstructing the trajectory of Sylvester's professional life on the basis of copious documentary evidence, describing Sylvester's more important mathematical results in his career context, and writing for broad audiences with no detailed mathematical exposition or technical analysis of Sylvester's mathematics... Highly recommended. Choice 2007 A well-written and thorough account of its subject... a wealth of useful and well-researched information that is difficult to find elsewhere. -- Robin Wilson Historia Mathematica 2006 This well-written, thoroughly researched biography will become the definitive study of Sylvester. -- Jeremy Gray British Journal for the History of Science 2008