* The name is misspelled. Double-check the spelling of the author's name.
* The author is relatively unknown. There might be a lesser-known author with this name. You can try searching online databases or literary journals.
* The author uses a pen name. It's possible the author uses a different name for publication.
If you can provide more context, such as the genre of the book, the time period, or any other details about the author, it might be easier to identify them.