Dr Stephen Rollnick is the co-founder of Motivational Interviewing and honorary distinguished professor at Cardiff University's School of Medicine. His research focuses on promoting positive behavioral change in patients, developing the fundamental principles of MI, and expanding its scope to healthcare professionals, schools and sporting coaches. Dr Rollnick has published over 100 papers and co-authored numerous texts including the bestsellers, Motivational Interviewing: Helping People Change and Motivational Interviewing in Healthcare.