I only became familiar with Mack's work recently, since he works for Marvel and I never used to read Marvel stuff. He works now on projects with Brian Michael Bendis, one of my favorite writers. The two worked on a DareDevil story together, and Mack now provides covers for Bendis's great book, Alias, about the adventures of a down-on-her-luck former super-heroine, Jessica, who now runs a private investigation firm. It's like dropping a female Phil Marlowe into the Marvel universe of superheroes, and really cool to read. Enjoy the wallpaper below, from an Alias cover.