The document discusses the three major agile certifications: Certified Scrum Master (CSM) by Scrum Alliance, Professional Scrum Master (PSM) by Scrum.org, and Agile Certified Practitioner (PMI-ACP) by the Project Management Institute. It highlights the requirements, exam formats, and content of each certification, emphasizing the importance of the PMI-ACP as it encompasses a broader range of agile practices beyond just Scrum. Additionally, it introduces the Agile Practice Guide released by PMI, which outlines key concepts and practices for implementing agile methodologies.