About design:

1. Less is more: the content will be more important
2. 5x5 rule: Maximum 5 lines of texte for a slide, and maximum 5 words per line.
3. Show, don't tell: group together, use size, color, font, bold, etc...
4. Fonts: Outfit, Montserrat, Lato, Fira, Roboto, Opan Sans, Poxima, Circular
5. Illustrations: Pixabay (https://pixabay.com/fr/), Unsplash (https://unsplash.com), stocksnap (https://stocksnap.io), Undraw (https://undraw.co)
6. Icons: Flaticon, TheNounProject (https://thenounproject.com/)
7. Figma or Adoe XD can help to create the slides