What is scannability and how to improve it?

Scannability is simple: can your reader extract the main point without reading every word? Give someone 3 seconds to glance at your email. Do they get it? That's high scannability. Do they see a wall of text and skip it? That's low scannability, and you've lost them.

Here's why it matters. Your subscribers are busy. They're opening email on a phone while walking. They're scanning between meetings. Most won't give you their full attention, and that's okay. You've just got to make sure your email still works for them.

Start with short paragraphs. Two to three sentences max. Long blocks of text look like work, and people are already busy. Each paragraph should cover one thought.

Use descriptive headlines and subheads throughout your email body. Not generic ones like "Details" or "Information." Tell them what they're about to read. "Why video performs better on mobile" beats "The Details." Readers with 10 seconds will catch the subheads and understand your structure.

Bold key phrases sparingly. Not every other sentence, but the core insight in each section. That bolded text should stand on its own; someone reading only the bold parts should still understand your main point.

White space is your friend, not wasted space. Put gaps between sections. Let your content breathe. A crowded email looks harder to read, even if it isn't.

And make sure your most important message appears above the fold. Your reader shouldn't have to scroll to find out what you're asking them to do. First thing they see: the value or the ask.

Quick test: take an email you're about to send and print it. Stand back. Does it look inviting or overwhelming? If you're squinting, it needs more space.