Five must-do, but rarely revealed, tips to create a TED Talk or presentation that is polished, engaging, and unforgettable.

My next three tips are the three criteria used in the science communication competition FameLab to mark the presentations: content, clarity, charisma. Taking part in FameLab (back in 2007!) was an eye ...

Knowledge of your audience is the first step in creating an effective, powerful presentation. If you can answer these 10 questions about your audience, you're on the right path.