Professional learning leaders are sometimes faced with skepticism about the expected impact of an investment in professional learning. Long-held myths and outdated notions about sit-and-get professional learning can act as barriers to thorough planning, appropriate funding, and sustained implementation of professional learning efforts. "Dispelling the Myths: What the Research Says about Teacher Professional Learning" is a research brief that offers a direct, easy-to-read summary of evidence-based truths that practitioners can use to better understand the issues at hand and share with others as a way to advocate for effective professional learning. The brief names six common myths about teacher professional learning, then refutes them with the evidence-based reality. This article presents a review of that brief and the six common myths. [This article reviews: Hill, H.C., Papay, J. P., & Schwartz, N. (2022, February 15). "Dispelling the Myths: What the Research Says about Teacher Professional Learning." Research Partnership for Professional Learning.]