He trained in analytic, humanistic, and neurolinguistic psychotherapies, and collaborated closely over many years with the creator of Clean Language and Therapeutic Metaphor, David Grove, until Grove’s death in 2008. They ran seminars and co-facilitated clients together. Philip is a member of the Scientific and Medical Network and founded the Clean Language Research Group. He is the author of many articles on Clean for professional journals and the cleanlanguage.co.uk, powersofsix.com, and wayfinderpress.co.uk websites. His book The Power of Six is about Grove’s last work in Emergent Knowledge and is dedicated to him.