* The name is misspelled. Double check the spelling to see if there's a similar author.
* The author is not well-known. It's possible they are a newer author, or their work is niche.
* The name is a pseudonym. Some authors use pen names.
* The information is inaccurate. The source of the information might be incorrect.
To help me find more information, could you please provide:
* The context in which you encountered the name: Where did you see the name "Max Welten"? Was it in a book, online article, etc.?
* Any additional details you know about the author: Do you know anything about their writing style, genre, or the topics they write about?
With more information, I might be able to find out more about this author.