Imison wrote, researched and lectured on numerous topics related to academia, including Leadership, ICT, Comprehensive Schooling, Creativity, Learning, Schools of the Future, Post 16 and Women Leaders.
She chaired various committees and was made an Honorary Fellow of Somerville College, Oxford, Queen Mary, University of London, and the Institute of Education, University of London.
There she devoted a large part of her time improving the natural environment in the town.
She helped found and run 'Halesworth in Bloom' achieving her goal of becoming best small town in 2015.
She also helped the park gain green flag status and created a new Hooker Trail within to celebrate the famous botanist Sir Joseph Dalton Hooker who once lived in Halesworth.