John Mack stepped down from his full-time academic position at the University of Sydney in 1997 and has been an Honorary staff member of its School of Mathematics and Statistics since then. In addition to his academic work, he was active in policy development and academic management at departmental, faculty and university-wide levels, chairing the University of Sydney’s Admissions Committee for many years and its Academic Board 1991-1997, when he was also a Fellow of Senate. He has had a professional involvement in mathematics education at state, national and international levels for over 40 years and is currently engaged with the NSW BOSTES Review of Stage 6 (Years 11-12) Mathematics as Chair of its Stage 6 Mathematics Curriculum Committee.