As of my last update, there is no widely recognized author by the name of Marta Molnar with a substantial body of work or a significant presence in literary circles. It's possible that Marta Molnar could be an emerging author, a writer with works in a non-English language, or an author who publishes under a different name. Alternatively, you might be looking for Marta Molnár, but without specific details, it is difficult to provide a short description. To help you effectively, more context or accurate spelling of the name and relevant details about the author's work or nationality would be needed. If Marta Molnar is an author with a specific book or article you're interested in, please provide additional details, and I will do my best to give you a short description based on the information available.