A proven success, A Writer’s Reference remains the easiest handbook to use and understand. The fifth edition sets new standards with its updated companion Website a comprehensive online resource developed by Diana Hacker. Reference Fifth Edition Student Site | Instructor Site Cross-references throughout the book refer you to relevant sections on the companion Web site. Over 1000 electronic exercise items for grammar, research, and writing allow you to practice your skills in an interactive environment. Language Debates by Diana Hacker discuss controversial issues of usage and style.