The apostrophe is something you need to get right, every time. A single misplaced apostrophe in that CV or that manuscript you've sweated over for years? It could undo all your hard work in a single moment. Because if there's one thing employers, editors and educated readers will judge you on, it's how you use the apostrophe.

But the apostrophe needn't be difficult - it just takes a little bit of thought and a teacher who knows how to make the rules clear, easy to remember and even fun! That's where English Grammar: Apostrophe Beginner to Apostrophe Expert comes in.

In English Grammar: Apostrophe Beginner to Apostrophe Expert, Cambridge writing tutor Dr Clare Lynch guides you from the basics to professional mastery, step by step.

You'll start by mastering the two main uses of this tricky little punctuation mark – and build up your knowledge from there.

By the end of this course, you'll not only be using the apostrophe with ease and confidence. You'll also have a more in-depth knowledge than the vast majority of professional writers, editors and proofreaders.

This comprehensive course gives you:

• Clear explanations and illustrations of the most important uses of the apostrophe
• Loads of quizzes and exercises throughout the course, to help you cement your knowledge
• Step-by-step guidance on avoiding the most embarrassing apostrophe blunders
• Simple ways to avoid common confusions – like the difference between "its" and "it's", "who's" and "whose"
• Advice on how to prevent that rogue, credibility-zapping apostrophe from slipping through the net
• Answers to advanced questions, like 100's or 100s? CVs or CV's?
• A downloadable "cheat sheet" you can refer to again and again