From the reviews: "The Praxis contains Harriot’s most significant contribution to the theory of equations, the discovery that polynomials can be constructed as products of linear, or sometimes quadratic, factors. … The notes that follow the translation (70 pages) offer a great deal of fine textual detail. They also contain some beautiful reproductions of the ... Read moreoriginal manuscripts … . Seltman and Goulding’s translation is a welcome addition to this growing body of work." (Jackie Stedall, MathDL, September, 2007) "The book under review is a useful English translation of a mathematically ‘clean’ copy … by Robert Goulding that is enriched by a competent commentary by Muriel Seltman: it makes the mathematical content accessible to the modern reader. To that end, Harriot’s notation has rightly been modernized. … The reader finds a comparative table of equations solved, a list of textual emendations, additional information about the Harriot papers (kept in the British Library), and a select bibliography." (Eberhard Knobloch, Mathematical Reviews, Issue 2008 j) "Seltman’s and Goulding’s Introduction, Commentary, and Tables are all interesting and useful. … The book contains just three reproductions of Harriot’s original work, each a full-page photograph of one of Harriot’s manuscript sheets on algebra. These are interesting and give the reader a good sense of what it is like to read Harriot’s work in the manuscripts themselves."(Janet Beery, British Society for the History of Mathematics, Vol. 24 March, 2009) Show Less