What has the author Jack Terry written?

There is no author named "Jack Terry" that is widely known or published. It's possible that this name is a pseudonym, or that you are thinking of a different author with a similar name.

Could you please provide more context or details about the author you are interested in? For example,

* What kind of books does he write? (Genre, topic, etc.)

* Do you have any titles or specific books in mind?

* Do you know anything else about the author, such as their nationality or a specific time period they wrote in?

With more information, I can help you find the author you're looking for.