This book by Lynne Truss is based on giving writers an insight on how to best use punctuation. I found certain sections confusing, but once reread, i then understood the section a little better.
This book was helpful in trying to teach me a little more about grammar and how i should use it when writing. It was an important read for me, as a designer, i need to constantly check my punctuation within designs and sites. Further reading upon this topic will be further explored in the near future.