In the 1980s David Grove devised a technique called Clean Language for healing patients with traumatic memories, such as child abuse or wartime trauma. The process enabled patients to resolve the effects of their experiences through visualisation and metaphor. He converted the work into a spatial technique called Emergent Knowledge and his techniques have attracted practitioners from all over the world including the UK, Europe, America, Australia and New Zealand. Performance Coaching pioneer Carol Wilson worked with David until his death in 2008, developing courses to train coaches and business psychologists to use his methods in the workplace, in order to relieve mental blocks and limiting behavioural patterns such as fear of public speaking, bullying and thwarted personal potential. This book is the most comprehensive work so far published about David Grove and contains a record not only of his work with Carol, but with leading practitioners across the world, including detailed descriptions of techniques, case histories and biographical details of David's life. Performance Coaches and Leadership Practitioners will be able to enhance their existing techniques by incorporating ideas, methods and principles from this book. It will help experienced and potential practitioners to gain an overview and a history of David Grove, and to know where to go for further research and learning.