Gerald is head of the Adult Learning service for the London borough of Ealing. He has written and lectured in Philosophy and Critical Thinking since 1990, and been a visiting lecturer at the Institute of Education since 1996. He has published 10 books including Exploring Ethics, Gatekeepers, Midwives and Fellow Travellers and, along with Jeremy Hayward and Daniel Cardinal, co-written the best-selling Philosophy in Focus textbooks for Hodder Education.