An alphabetical guide to the most common problems of grammar and vocabulary.
Key features
370 short entries, arranged alphabetically, explaining problem points of grammar and vocabulary. 
Simple explanations, written as far as possible in ordinary everyday English. 
Numerous examples of correct usage and common mistakes. 
Descriptions of formal and informal language. 
A full index and cross-references between entries to help students find information quickly and easily. 
British and American usage contrasted. 
Also available in Pocket format.