The academic educator's portfolio is a collection of materials that document academic performance and achievements, supplementing the curriculum vitae, in order to showcase a faculty member's most significant accomplishments. A decade ago, a survey of medical schools revealed frustration in the nonuniform methods of measuring faculty's medical education productivity. A proposed solution was the use of an academic educator's portfolio. In the academic medical community, compiling an academic portfolio is always a challenge because teaching has never been confined to the traditional classroom setting and often involves active participation of the medical student, resident, or fellow in the ongoing care of the patient. Diagnostic radiology in addition requires a knowledge base that encompasses basic sciences, imaging physics, technology, and traditional and molecular medicine. Teaching and performing research that involves this complex mix, while providing patient care that is often behind the scenes, provides unique challenges in the documentation of teaching, research, and clinical service for diagnostic radiology faculty. An academic portfolio is seen as a way to explain why relevant academic activities are significant to promotions committee members who may have backgrounds in unrelated academic areas and may not be familiar with a faculty member's work. The academic portfolio consists of teaching, research, and service portfolios. The teaching portfolio is a collection of materials that document teaching performance and documents the educator's transition to a more effective educator. A research portfolio showcases the most significant research accomplishments. The service portfolio documents service responsibilities and highlight any service excellence. All portfolios should briefly discuss the educator's philosophy, activities, methods used to implement activities, leadership, mentoring, or committee roles in these respective areas. Recognizing that academic programs have differing needs, this article will attempt to provide some basic guidelines that may help junior faculty in diagnostic radiology develop their teaching, research, and service portfolios.