Aaron Smith is a relatively common name, and there might be multiple authors with that name across various genres. Without more specific information, it's difficult to give a short description of a particular author named Aaron Smith. This name could be associated with authors of fiction, non-fiction, academic works, or other written materials. To provide an accurate description, more context about the works or the field they specialize in would be necessary. If you have more details about the specific Aaron Smith you are referring to or about his area of expertise and published works, I could give you a more precise description.