* The name is slightly misspelled: Double check the spelling of the name.
* The author publishes under a different name: They might use a pen name or have a different professional name.
* They are a new or niche author: Their work might not be widely published or known.
To help me find more information, could you provide any additional details you know about the author, such as:
* The genre of their work: Fiction, non-fiction, poetry, etc.?
* Any specific books or titles they have written: Do you recall a book title or series?
* The approximate year of publication: When did you encounter their work?
With more information, I can help you find information about Shelby Yastrow.