9A Guide to the Project Management Body of Knowledge (PMBOK Guide(R)) - Sixth Edition and the Agile Practice Guide Bundle will be available while supply lasts. To support the broadening spectrum of project delivery approaches, PMI is offering A Guide to the Project Management Body of Knowledge (PMBOK(R) Guide) - Sixth Edition as a bundle with its latest, the Agile Practice Guide. The PMBOK(R) Guide - Sixth Edition now contains detailed information about agile; while the Agile Practice Guide, created in partnership with Agile Alliance(R), serves as a bridge to connect waterfall and agile. Together they are a powerful tool for project managers.