English grammar is often said to be over-complicated and difficult to get to grips with but the truth is that, while there are certain rules that should be obeyed, the language evolves and develops over time - and quite rightly so. In this useful book, Joseph Piercy outlines the 25 rules that should be adhered to in written and spoken English, defining the rules themselves and then decoding them for the layman so that he or she understands each rule and how it has been used and developed over time.