* The name is misspelled: There might be a similar-sounding author. Can you double-check the spelling?
* The author is not well-known: Perhaps they are a lesser-known author or write in a specific niche. More information about their work or genre could help identify them.
* The name is fictitious: It's possible the name is made up or a pseudonym.
Please provide more information about Johannes Maria Staud, such as:
* Genre: What kind of books does he write?
* Titles: Do you know any specific book titles?
* Country of origin: Where is he from?
With more details, I might be able to help you find information about this author.