Robert T de FilippisThe author, Robert De Filippis, an ex-corporate executive, has been a certified Ontological Coach and Birkman practitioner for over thirty years. He has coached hundreds of clients, trained dozens of Birkman practitioners and now shares his knowledgeof how to coach using The Birkman Method(R). With a firm grasp on the theories of cognitive neuropsychology, and linguistic philosophy, his practical experience comes through in the many real-world examples in this book. Read More Read Less