Barry Marshall and Robin Warren, 2007

On one level The Companion talks about the most famous and frontline Australians, but on another it tells us about ourselves: who we read, who we watch, who we listen to, who we cheer for, who we aspire to be, and who we'll never forget. The Companion is available to buy online and in the Portrait Gallery Store.

An interview with photographer Robin Sellick about his portrait of golfing champion Adam Scott.

Robin Sellick captured a rare moment of quietude from the late conservation star Steve Irwin.

Robin Sellick's portraits of Australian sportspeople include Harry Kewell, Adam Scott, Shane Warne, Mark Webber and John Newcombe.