Slide Presentations: Design Basics

A slide deck is a stack of slides that helps you tell a story to an audience. The best decks look clean, read easily, and keep the focus on you — the speaker. Good design is not about decoration. It is about making your message clear from across the room.

The Six Big Rules

1. One big idea per slide — if it has two ideas, make two slides.
2. Big, readable text — your audience must read it from the back row.
3. Less is more — short bullets beat full paragraphs.
4. High contrast — dark text on a light background, or the reverse.
5. Simple visuals — one strong image or chart per slide.
6. Consistent style — same fonts, same colors, every slide.

Layout & Hierarchy

Every slide has a layout — where the title, visual, and bullets sit. Hierarchy means the most important thing should look the most important: biggest, boldest, or first on the page. Use white space (empty room) to let the eye rest. A crowded slide makes the audience tune you out.

• Title bar at the top — short and clear.
• One key visual or three short bullets in the middle.
• Footer with page number so the audience knows where you are.
• Plenty of white space around the edges.

Common Mistakes to Avoid

• Walls of text — the audience reads instead of listening to you.
• Tiny font — anyone past row two cannot see it.
• Busy backgrounds — patterns and photos behind your words make them unreadable.
• Mixing four fonts — pick one or two and stick to them.
• Low contrast — yellow text on a white slide disappears.