Steven Heller & Gail Anderson. Steven Heller & Gail Anderson Steven Heller and Gail Anderson. by Steven Heller & Gail Anderson. Steven Heller and Gail Anderson Steven Heller, Gail Anderson by Steven Heller, Gail Anderson. by Steven Heller, Gail Anderson 史蒂芬·海勒(Steven Heller)，盖儿·安德森(Gail Anderson)著