Giles is a Teaching & Supervising Transactional Analyst in the education field. He is also a qualified teacher and has experience in working in mainstream and specialist contexts. He has spent most of his career establishing and managing support services for schools and families. In addition to being a TSTA, Giles also has an MA, MEd and a Post-Graduate Diploma in Special Educational Needs.
Giles has written widely on the theme of relationships in schools and specifically on using TA in schools, including Delivering Effective Behaviour Support and co-authoring Improving Behaviour and Raising Self Esteem. He has recently co-edited Walking the Talk (all published by David Fulton).