The apostrophe causes more problems in the English language than any other aspect of grammar. Grown adults with a university education don’t know how to use it properly, and our high streets are filled with hilarious examples of its misuse. Join the pedants as they revolt against the misuse of this essential piece of punctuation and with one simple rule learn how to use the apostrophe correctly – once and for all. "Welcome to the pedants' club. I'm struggling to find a way of faulting your theory...and having a bit of trouble. Well done." - John Humphrys, BBC Journalist and Presenter, BBC Radio 4 'Today'