Penny Arcade Volume 4: Birds Are Weird By (author): "Mike Krahulik, Jerry Holkins"Genres:Fiction books Humor books Comics books Graphic Novels books Webcomic books ISBN1593077734ISBN139781593077730AsinPenny Arcade Volume 4: Birds Are WeirdOriginal titlePenny Arcade Volume 4: Birds Are WeirdSeriesPenny Arcade #4Published online in 2003, this is a smorgasbord of commentary courtesy of Gabe and Tycho.