"PRO Slides" is a basic course with an emphasis on the technical part. After passing it, you will master the functionality of PowerPoint / Keynote and become reassured that not only designers can make cool slides.
"PLUS" is the next step, which includes theory and practice. You will learn the basic principles of building a structure of presentation, where to seek inspiration, and how to present information in the most understandable and simple way for the audience. Webinars are live and provide numerous slides-examples.