Oxford Modern English Grammar - Bas (Professor of English Linguistics and Director of the Survey of English Usage at University College London) Aarts - Bog

Oxford's new and definitive guide to grammar is written by a leading expert in the field and covers both British and American English. Its impressive coverage ranges from the very basic to the most complex aspects of grammar, all of which are explained clearly. An authoritative and engaging guide to what grammar is and how it can be used.