Where would Harry be without Dumbledore? We all need mentors, and they can be critical throughout your career development. Whether you are an undergraduate thinking about applying to graduate or professional school, a medical student wading through residency options or a post-doc looking for faculty positions, the relationships you develop with your mentors can be invaluable. Mentors can give advice, provide encouragement or a reality check, offer insight from their experience, and expand your network by connecting you with their own friends and colleagues. The ideal mentoring relationship is one that evolves over time where the mentor takes a genuine interest in the success of the mentee. We all recognize that mentors are important. But how do you find them? And, once you have, how do you nurture the relationship so it can thrive?