Northern Arizonans traveling to far away destinations like Hearst Castle, Niagara Falls or the San Antonio River Walk this summer will notice dramatic, full-color billboards, banners and advertising pieces designed by a small Flagstaff ad agency. WM. McElfresh Advertising Inc. develops and produces all promotional materials for Destination Cinema, a partner of the National Geographic Society. Destination Cinema, Inc. (DCI) operates the Grand Canyon's National Geographic Visitor Center and … [Read more...] about Local Agency’s Secrets to Serving International Clients