The Cambridge Science Festival is committed to engaging the public with science, technology, engineering, mathematics, medicine and more. The Festival depends on the continued creativity, hard work and enthusiasm of colleagues in the University and beyond. We thank all those who created and co-ordinated individual and departmental events in 2012. We aim to be inclusive and we thank the other agencies, schools, institutions and businesses which take part. Our events are evaluated by the visiting public and we collate and assess their comments in order to make improvements to the following year’s festival.