Though people are still debating why the golden ratio is so visually pleasing, most assume that it’s because it seems to appear everywhere – from the arms of galaxies to the spirals of shells to this photograph of typical New Year’s Eve celebrations in the UK. See how Mona Lisa’ s mysterious face lines up with the golden spiral: Famed polymath Leonardo da Vinci incorporated the mathematics of this ratio into his paintings. Based on the golden ratio, the golden spiral can be found in some of the most famous artworks in the world. Why are grids important?įans of Renaissance art and/or geometry – I know you’re out there! – might have heard of the golden spiral. However, help is at hand! Let me show you how to make PowerPoint grids and guides your secret weapons, using them to create effective layouts that not only look neat and professional, but actually leverage proportions to better communicate with your audience. In the worst, your audience completely loses interest in your message, your professionalism is compromised, and you fail to meet the goals of your presentation. Human beings can’t help judging a book by its cover – or the content of your presentation by how it is designed. In the best-case scenario, they’ll lose focus for a second, wondering whether you put this presentation together on the train that morning. Wonky alignment and badly proportioned slides can easily distract your audience.