Dianne, that's a great idea that your agent inserted that phone call. That would definitely get the attention of a publisher.

And I totally agree with Dotsie about letting agents/editors know about relevant life and professional experience, such as being a professional speaker on the topic, etc., particularly when you're pitching nonfiction.

Just remember, if you've written an essay or book or story, then you can certainly write a one-page query letter! So send out your work! Sue