In addition to coloring his own work, Jim Campbell has worked as a colorist for Marvel, D.C., Darkhorse, and various independent comic companies and artists. He has been the colorist for Mr. Tony Millionaire for the past several years. Click the links at the left to view samples.

You can also click on the samples on these pages(such as the one above from Tony's Art of Tony Millionaire book) to view them much larger.