This book for intermediate and more advanced students combines reference grammar and practice exercise in a single volume. Easy to use : on each left-hand page a grammar point is explained and on the facing page there are exercises to check understanding. Additional exercises at the back of the book offer extra practice of grammar points from different units. Provides comprehensive coverage in simple language of the problems intermediate students often have. Designed for self-study : with the help of a study guide, learners can choose and study those points which they find difficult. Contents list and detailed index ensure that users can easily find the unit(s) they need. Key section contains answers to all the exercises. Appendices deal with irregular verbs, tenses, model verbs, spelling, contractions and American English.