In this lively and illuminating book, Leon Barkho guides us effortlessly through the areas where we may get it wrong when writing English. It is both a grammar version and a workbook on how language structures link together. Grammar features and terminology are simplified with plenty of exercises cautioning against mistakes. The examples illustrating the grammar points the book deals with are all drawn from authentic English. The book includes more than 400 useful exercises on how to correct errors when writing English and more than 400 suggested correct versions of erroneous samples.