We’ve all experienced the tedium of a text-heavy, excessively lengthy presentation. The ’10 20 30 rule’ can revolutionise your slides and your message.
So you are a PowerPoint wizard and your presentation is tomorrow. You have prepared all the necessary ingredients for your PowerPoint, all the relevant information, pun jokes, images, etc. You memorised all the key points and the movements of your clicker wand, like a true wizard you are. But, you realise there is a problem.