As of my last knowledge update in early 2023, Rick Yohn does not appear to be a widely recognized author in mainstream literature. It's possible that he may be a local or independent author, an expert in a particular field with publications, or possibly he has written work in a specific niche or for a private audience. Without more context or information, it's difficult to provide a more detailed description. If Rick Yohn is an emerging author or has gained recognition after early 2023, I would not have details on his career or publications. If you can provide more details or clarify the context in which Rick Yohn is known, I may be able to offer more specific information.