This is an actionable summary of Kevin Hale guide on designing a pitch deck:

How to Design a Better Pitch Deck: Fundraising, Pitch Deck, YC Demo Day | Y Combinator

Good deck design should help you communicate things clearly. It should help people understand what you say.

Good slides are:

1. Legible — “Legible slides are ones that even old people sitting in the back row with bad eyesight can read.”
2. Simple — “Simple ideas are ones that aren’t intertwined with other ideas. A simple slide, therefore, expresses one idea.”
3. Obvious — “Obvious slides are ones that can be understood at a glance.”

Below is a set of rules that helps you to keep your slides legible, simple, and obvious.

Make your slides easy to read

• Use large type.
• Bold text.
• A simple font.