“Practical English Usage” by Michael Swan is a comprehensive guide that addresses common English grammar and usage issues faced by learners. It provides clear explanations of complex grammar rules, vocabulary, and idiomatic expressions, focusing on practical solutions to everyday language problems. The book helps users avoid common mistakes, explains confusing words and phrases, and includes tips on pronunciation and spelling variations between British and American English. Designed for both learners and teachers, it’s a valuable resource for improving English proficiency and understanding real-world language usage.