The Professional Scrum Master (PSM) certification is a credential offered by Scrum.org for individuals proficient in Scrum principles and practices. It signifies a deep understanding of the Scrum framework, roles, events, and artifacts. PSM holders are skilled in facilitating collaboration among team members, ensuring the Scrum process is followed effectively. The certification comes in various levels, from PSM I for foundational knowledge to PSM III for advanced mastery. PSM-certified professionals play a pivotal role in promoting agile methodologies, driving team performance, and fostering continuous improvement within organizations.