—a companion to the indispensable now in its fourth edition—offers comprehensive and practical training for both aspiring and experienced copyeditors. Exercises of increasing difficulty and length, covering a range of subjects, enable you to advance in skill and confidence. Detailed answer keys offer a grounding in editorial basics, appropriate usage choices for different contexts and audiences, and advice on communicating effectively with authors and clients. The exercises provide an extensive workout in the knowledge and skills required of contemporary editors.