Psychology internship and fellowship years are exciting yet challenging times of professional development, as geropsychologists-in-training transition to independent practice and work to consolidate their identities as professional geropsychologists. Geropsychology supervisors help interns and fellows to develop and refine attitude, knowledge, and skill competencies for geropsychology practice. "Transformational" geropsychology supervisors also serve as mentors. They offer professional role modeling, acknowledgement of unique strengths and areas for growth, socialization to the geropsychology community, and communication of confidence and support for the professional development of interns and fellows.