On many WordPress sites, the person behind a post matters just as much as the content itself. The Author condition allows you to target ads or custom content based on the creator of a post or page, opening up several practical strategies for site owners.
A common application is integrating author boxes below an article to support Google’s E-E-A-T principles (Experience, Expertise, Authoritativeness, and Trustworthiness) by clearly attributing expertise.
Another realistic scenario is revenue sharing on multi-author blogs. If guest writers or contributors publish content on your site, you may want them to participate in the advertising revenue generated by their specific articles. With the Author condition, you can display dedicated ad units—even from different accounts—only within posts written by a particular author.
You can apply the Author condition to individual ads, ad groups, or entire placements:
From this point on, the selected item will only appear inside posts or pages written by the chosen author.
For a broader explanation of how to use conditions in AdPresso, see the general conditions documentation.
Using AdPresso for author boxes often makes additional plugins unnecessary. Here is how to set it up:

AdPresso will then automatically filter the group to display only the ad that matches the current post's author.