The owners manual for the independent sales consultant Aspiring sales consultants will learn the latest in presentation and training skills, designing and planning campaigns and special promotions, writing sales literature, arranging publicity, and much more. Herman Holtz (Wheaton, MD) is the author of the bestseller How to Succeed as an Independent Consultant and has been a consultant to such companies as IBM, GE, Dun & Bradstreet, and Chrysler.