Missing from author list

This book: https://www.librarything.com/work/20552838
Is not in this list: https://www.librarything.com/author/hoffmanphillipw

Not sure why as Hoffman has published two books.

Zero-edition works aren't listed. What that means is when no members have the work in their catalogues, the work won't appear on the author's page.

Closing.