What Is Body Copy?

Body copy does the persuading. A headline earns the reader's attention, but the body copy explains the offer in detail and moves the reader to complete an action. Strong body copy leads straight to the call to action (CTA), the button or link that asks the reader to buy, sign up, or get started.

Good body copy reads like a plain, direct conversation: it names what a product or service does, then shows why that matters to the reader. Headings and subheadings break it into readable sections, but they aren't body copy themselves: body copy is the paragraph text that runs beneath them. Emotion helps when it's grounded in something real. If your readers already worry about wasted spending, a line like “Stop paying for storage you never use” meets that concern directly and does more work than a paragraph of specs. Match the emotion to a concern you've actually heard from your readers; don't invent or exaggerate one.

How to write effective body copy

Five rules cover most of it:

• Front-load the main benefit. If a visitor reads only one sentence, that sentence should carry the point.
• Keep one idea per paragraph, and keep paragraphs to 2-4 sentences so they stay scannable.
• Translate features into benefits: “waterproof to 30 meters” becomes “swim with it on.”
• Write to one reader as “you,” not to an audience.
• End with a clear next step that points at your call to action (CTA).

For the long-form version applied to store pages, see How To Write Product Descriptions That Really Sell: 10 Tips. Then pick one page you own and rewrite its first paragraph so the benefit comes first.

What good body copy looks like

Compare two versions of the same product page for a travel backpack.

Weak: “This backpack is made from abrasion-resistant 840-denier ballistic nylon, holds 28 liters, has a padded 15-inch laptop sleeve, and ships the same day on orders placed by 2 p.m.” Accurate, but it reads like a spec sheet, and it leaves the reader to work out why any of that matters.

Strong: “Built from abrasion-resistant 840-denier ballistic nylon, this 28-liter pack stands up to rough handling and keeps your 15-inch laptop padded and protected. Order by 2 p.m. and it ships today.” Same facts in both versions; the strong one translates each spec into what it does for the reader and ends by saying what to do next.

One caution before you copy the pattern: verify every benefit and every fulfillment promise, like that 2 p.m. shipping cutoff, before you publish it. Body copy can translate facts into benefits; it can't invent them.

Setting body copy on a webpage

Layout decides whether body copy gets read at all. Baymard Institute's readability research (“Readability: The Optimal Line Length,” May 10, 2022) puts the optimal line length for body text at 50-75 characters per line, building on typographer Emil Ruder's classic 50-60. Longer lines feel intimidating and get skipped; shorter lines send the eye back too often and break the reader's rhythm.

Size and spacing matter too: keep body text large enough to read on a phone without zooming, and give lines enough room that paragraphs don't blur into a wall. Our typography entry covers typefaces, sizes, and spacing in detail. To check your own site, count the characters in one full line of body text; if you're well past 75, narrow the column.