Introducing a new series of JAMA articles on professionalism, discussed from the perspective of how clinicians should address challenging clinical situations and adverse events in their medical practice. In the first episode of the accompanying podcast, JAMA Professionalism: Best Practice, we interview Wendy Levinson, MD, and Jensen Yeung, MD, authors of Disclosure of Medical Error, which appeared in the August 16, 2016 issue of JAMA, as well as Thomas H. Gallagher, MD.