Seán MacPherson is a haematologist and senior clinical lecturer employed jointly by the University of Otago, Christchurch, and by Canterbury District Health Board. He is part of the UOC Haematology Research Group, currently investigating immunosuppression in chronic lymphocytic leukaemia. Cross-campus laboratory collaborations involve research into acute myeloid leukaemia, myelodysplastic syndromes and haemostasis. Seán is an enthusiastic teacher and uses a number of innovative techniques including song, poetry and drama to get his message across.