Very little work regarding C. Rogers's (1961) client-centered counseling has been published in the counseling discipline's journals over the last 20 years. However, during this time there has been an impressive output of empirical research using motivational interviewing (MI) in which C. Rogers's theory and approach are foundational. A review of MI's basic theoretical premises and applications for a multitude of behavioral problems are presented. Justification for integrating MI into counseling practice, training, and research is offered.