A picture of all the presenters from last week’s launch at the University of Sydney of the book Four Pillars of Radio Astronomy: Mills, Christiansen, Wild, Bracewell by Frater, Goss and Wendt. From left to right: Elizabeth Mahony, Ron Ekers, Don Melrose, Phil Bennett, John O’Sullivan, Miller Goss, Elaine Sadler, Harry Wendt, Bob Frater, Dick Hunstead, Tony Beasley and Anne Green.