Guide · Ad Copywriting
Great ad copy answers a doubt. Bad ad copy describes a product.
The difference between copy that converts and copy that informs — and the simple structure that gets you the first one.
Most ad copy lists what a product is. Copy that works speaks to what the reader is quietly thinking — the doubt, the desire, the objection — at the moment they see it. Feature-first copy is talking to itself.
Nobody reads your ad wondering what your feature list is. They’re wondering if it’s for them.
1 · Lead with the reader, not the product
The first line should be about them — their situation, their doubt, their want. The product enters as the answer, not the announcement.
2 · One idea per ad
A single, clear promise beats a clever line carrying three. Confusion doesn’t convert, and cleverness is often just confusion in a nicer outfit.
3 · Specific beats superlative
‘Set up in four minutes’ beats ‘incredibly fast.’ Specifics are believable; superlatives are noise the reader has learned to ignore.
4 · Earn the click, don’t trick it
A misleading hook wins a click and loses the sale — and teaches people to distrust you. The click should promise exactly what the next page delivers.
Before writing, note the one doubt or desire in the reader’s head. Write to that. If your copy could describe a competitor equally well, it isn’t finished.
Common questions
How do you write high-converting ad copy?
Lead with the reader’s doubt or desire, carry one clear idea, use specifics over superlatives, and make the hook promise exactly what the landing page delivers.
What’s the most common ad copy mistake?
Describing the product instead of answering what the reader is thinking. Feature-first copy talks to itself; conversion copy talks to the doubt.
Related: the CRO framework · what people actually do.