The 3rd edition of Motivational Interviewing is where the four core processes of MI were first formally set out.

William R. Miller and Stephen Rollnick move the method away from its earlier phase-based model and introduce Engaging, Focusing, Evoking, and Planning as the framework practitioners use today. Clinical transcripts and OARS skills guidance support practice in mental health, addiction treatment, medicine, and social work. ISBN 9781609182274.