AEO (Answer Engine Optimization) structures your content so answer engines — Google AI Overviews, ChatGPT Search, Copilot — select it as the direct answer to a question, instead of just listing it as one more link.
SEO aims to get the click; AEO aims to get your answer used, with or without a click.
The language models behind these answer engines are trained overwhelmingly on English text, so for any given question there are structurally more well-optimized English sources fighting to be the cited answer than in most other languages. Winning a slot here requires more than good formatting — it requires genuinely differentiated data and consistent authority signals across your whole site.
Answer engines don't just look at format — they also weigh whether whoever's behind the content has real experience with the topic (Experience, Expertise, Authoritativeness, Trustworthiness). For an author, that means your "about" page and bio matter as much as the content itself: they need to make clear why your word on the book's topic deserves trust.