Book excerpt: For courses in Advanced Grammar. The essentials of English grammar, with a distinctively clear organization and user-friendly language Understanding English Grammar presents the most useful elements of both traditional and new linguistic grammar, bearing in mind that today's learners use communication tools predominantly for social purposes. Accessible to the novice reader, the text begins with an overview of English as a world language, language change, and key issues tied to prescriptive grammar and correctness. Incremental exercises provide opportunities for guided or independent practice throughout with answers at the end of the book and an updated list of further readings. The 10th Edition introduces coauthors Gray and Salvatore, who add their expertise in linguistics, creative writing, and teaching grammar and writing.