|Occupation||comic book artist, writer, blogger|
|Years active||1996 – present|
|Our Gods Wear Spandex|
Knowles began his career in 1996, writing and drawing comics, particularly, Halo, an Angel's Story, a mini-series published by Sirius Entertainment, and contributing to the art in a graphic novel based on the Saturday Night Live cartoon The X Presidents. He was also the editor of the Top Shelf Productions magazine Comic Book Artist from 2000-2004 and has written articles for publications such as The Jack Kirby Collector and sites like Comic Book Resources.
Knowles wrote a book called Our Gods Wear Spandex: The Secret History of Comic Book Heroes (2007), which won an Eagle Award for "Favourite Comics-Related Book". He co-authored a book published in 2008 about The X-Files TV series called The Complete X-Files: Behind the Series, the Myths, and the Movies. In October 2010, Viva Editions published his latest book, The Secret History of Rock 'n' Roll, which Voice of America says presents rock and roll as having its roots "in the mystery cults of the ancient world", then "follows the evolution of rock 'n' roll from an expression of youthful rebellion to a symbol of American culture."
Since November 2007 Knowles has been blogging on topics related to his books.