Authors of the iGaming SEO book
The cover of iGaming SEO names three authors: James Dooley, Karl Hudson and Kasra Dash.

Who are the authors on the cover?
James Dooley, Karl Hudson and Kasra Dash are credited on the cover, on Goodreads and in the book's three About Author chapters.
Why do some listings name a fourth author?
The listings disagree on the count: three names are printed on the cover, and some stores add a fourth.