The "Guide to the Project Management Body of Knowledge (PMBOK® Guide) ― Eighth Edition" is a textbook authored by the Project Management Institute. This publication serves as a comprehensive resource for those studying or practicing project management. As the Eighth Edition, this guide reflects the current standards and best practices in the field, making it a valuable tool for understanding and applying project management principles effectively. With its detailed content and authoritative source, this PMBOK Guide is a key reference point for anyone looking to enhance their knowledge and skills in project management.