"This book fills an important gap in the coaching literature. Psychometric data figures increasingly in the background materials coachees bring to the learning alliance and the book provides valuable guidance on how to make safe, effective use of a wide range of instruments."

Professor David Clutterbuck, Clutterbuck Associates

"Executive coaches are increasingly aware that our observations are invariably biased, distorted and selective. While that is part of the charm and power of coaching, this textbook is invaluable in balancing our sometimes overly subjective perception."

Erik de Haan, Director of Centre for Coaching, Ashridge Business School

"A very timely book. Both coaching and psychometrics are fast growing areas. Psychometric test results help build the foundation on which effective coaching rests. Any coach should know this information."

Professor John Rust, The Psychometrics Centre, University of Cambridge