The Gregg Reference Manual, 10/e, by Sabin is intended for anyone who writes, edits, or prepares material for distribution or publication. For nearly fifty years, this manual has been recognized as the best style manual for business professionals and for students who want to master the on-the-job standards of business professionals. GRM provides answers that can't be found in comparable manuals. That probably explains why GRM has received so many unsolicited 5-star reviews on the Amazon Web site. Those 5-star reviews offer a clear indication of the reputation GRM enjoys in the marketplace.Sabin, William A. is the author of 'Gregg Reference Manual A Manual of Style, Grammar, Usage, and Formatting', published 2004 under ISBN 9780072936537 and ISBN 0072936533.