What has the author Percy Winner written?

There doesn't appear to be a widely known author named "Percy Winner." It's possible you have a misspelling or are thinking of a different name.

Could you double-check the spelling or provide any other context?

For example:

* Is there a specific book or genre you are interested in?

* Do you know any other details about the author, like their nationality or period of time they wrote?

With more information, I might be able to help you find the author you're looking for.