'Grammar is the science of using words rightly, leading to thinking rightly, leading to deciding rightly, without which - as both common sense and experience show - happiness is impossible. Therefore: happiness depends at least partly on good grammar.'

So writes Mr Gwynne in his small, but perfectly formed new book. Mr Gwynne believes passionately that we must regain our knowledge of the lost science of grammar before it is too late.

Formerly a successful businessman, Mr Gwynne has for many years been teaching and tutoring just about every sort of subject to just about every sort of pupil in just about every sort of circumstance. His teaching methods are very much the traditional, common-sense ones, refined over the centuries, that were almost everywhere until they were abolished in the 1960s.

Being disappointed in the standards of grammar he encountered in his pupils, Mr Gwynne, over time, wrote this wonderful, succinct and yet comprehensive little book - because nothing quite as suitable already existed.

This edition also includes Strunk's classic guide to style, explaining how to write well and the main pitfalls to avoid.

Beautifully designed, easy to understand and a joy to read, Gwynne's Grammar may be the best little book you will ever have in your life.