Paragraph basics

A paragraph is a unit of thought, not just a block of text. When a paragraph has a single job clearly done, the reader moves smoothly through your work.

What it is

A paragraph is a group of sentences about one main idea. It usually opens with a topic sentence that states the idea, then supports it, then closes or links to the next point.

Why it matters

Paragraphs give readers breathing space and show them how an argument or story is organised. A wall of undifferentiated text is intimidating; clear paragraphs guide the eye and the mind.

Step-by-step guide

Give each paragraph one main idea. If you find yourself covering two different points, split them into two paragraphs.

Start with a topic sentence. It tells the reader what this paragraph is about. It can be in the middle for effect, but for most non-fiction, opening with it is clearest.

Support the topic sentence. Add explanation, evidence, examples, or specifics. This is the body of the paragraph.

Keep the paragraph a coherent unit. Every sentence should relate to the same idea. Cut anything that drifts off.

End so the reader can move on. A closing sentence can round off the point or lead into the next one. Transitions — "however", "in practice", "as a result" — signal how ideas connect.

Vary paragraph length. A long paragraph and a short one side by side create rhythm. Very short paragraphs are useful for emphasis; too many of them feel choppy.

Common mistakes

Façon paragraphs. A paragraph that only tells the reader not to fear something, then starts the next paragraph again, has no job. Each paragraph must add something.

Wandering paragraphs. Starting on one topic and ending on another with no warning.

Single-sentence paragraphs everywhere. A short paragraph is a tool for emphasis, not a default for every line.

One giant block. A page-long paragraph is hard to read and hides your structure.

Practical tips

• If a paragraph is longer than five sentences, consider splitting it.
• Topic sentence first is a safe default for non-fiction.
• Read the first sentence of every paragraph; it should tell you what the paragraph is about.
• Use a linking word or phrase when two paragraphs connect.

Checklist

• Each paragraph has one main idea.
• A topic sentence states that idea.
• The body sentences support it.
• I cut anything that drifted.
• I varied paragraph length.
• I added transitions where ideas connect.