Professor John E Clark (BA Hons1 PhD Macquarie) is a retired lecturer, university researcher, and university president who has also worked internationally for a large multinational electronics organisation. He has previously co-authored books in electronic engineering, linguistics and speech science, and has a particular research interest in man-machine interaction and the cognitive processes involved. In retirement, he has used his technical skills to help install a large short wave radio station with worldwide coverage that broadcasts the gospel in 30 languages from far northern Australia. He has also served as board chairman of a major Christian aged care organisation, as well as serving as a layman in the ministry program of his local church in greater Sydney. He has been happily married for over half a century, and has three adult children and six grandchildren.