Understand how to use apostrophes correctly with these easy-to-follow rules and tools, written by a writer and editor with two decades' experience being a grammar and punctuation checker!

With both written and video explanations, learn this crucial element of English punctuation however you learn best. Then test your skills with a quiz examining each category of apostrophe. Multiple choice answers and explanations will reinforce each lesson.

• Understand how apostrophes change meaning, and how they can kill the credibility of your writing.

• Learn the three simple rules of apostrophes - and the one exception.

• How to handle apostrophes with plurals, and how to avoid the plural trap.

• Master apostrophes and collect your own apostrophe crimes!

• Download your free apostrophe flowchart - never mangle an apostrophe again!

Your instructor

Jason Davis has more than 20 years' experience as a sub-editor, editor and staff writer, and has worked on some of Australia's largest and more prestigious daily newspapers and magazines. He has been responsible for the quality and accuracy of copy for publications including The Sydney Morning Herald, The Sun-Herald, The Courier-Mail and the Qantas in-flight magazine. With an eagle eye for grammar, punctuation and clean copy, Jason has edited, checked re-written and improved the copy of some of Australia's best writers.

Along the way, he has developed a knack of simplifying the art of writing by gathering and teaching simple rules and techniques that anyone can master.