<p>Practical English Usage, 4th edition: Paperback: Michael Swan's Guide To Problems In English</p>
<p>Completely revised and updated to reflect changes in language use. NEW Organisation into two easy-to-use parts, making it quicker to find the information you want. Part 1 is a complete topic-by-topic student's grammar, with section introductions highlighting common mistakes.Part 2 is a guide to key vocabulary topics, including an A-Z list of common word problems. NEW Also available online, including 87 diagnostic tests.</p>