As of my last update in September 2023, Jennifer Lang refers to multiple individuals, and without further context, it's difficult to provide a specific description. Generally, the name might refer to a writer, author, or professional in a particular field. For example, one Jennifer Lang could be an author who writes on subjects like health, wellness, or personal development. Another might be an academic or a fiction writer. To offer a short description of a particular Jennifer Lang, I would need more context about her work or the field in which she has made contributions. In the case of authors, for example, knowing the titles of their books or the subjects they write about would help to provide a more detailed description. If you have a specific Jennifer Lang in mind, please provide additional details.