Roy Tasker is the Associate Head of School for Teaching and Learning, and Associate Professor of Chemistry, at the University of Western Sydney, Australia. His PhD research background was in synthetic inorganic chemistry, but his current interests are in the use of molecular-level visualisation to promote a deeper understanding of chemistry by students. Resources developed in his R&D project, VisChem, have been used in university-level textbooks and secondary-level resource sites all over the world.