G is for Getting the Point (Grammar)

Getting the Point is "A Panic-Free Guide to English Punctuation for Adults" by Jenny Haddon and Elizabeth Hawksley.

I highly recommend the authors' amusing innovative approach to grammar using stories of "squabbling dragons, the ups and downs of the Whole Nut Café and Cassanova's thoughts on love. There are quizzes - with answers - throughout to help you practice."

Whatever you write this book is an "ideal guide".