While the PMBOK Guide 7th Edition is now available (latest edition), the current PMP exam (2022) is still based on the PMBOK Guide 6th Edition (as a reference), and the PMI Agile Practice Guide PDF (free for the PMI members). The PMBOK Guide is a go-to reference book. But https://rafaeltrnia.blazingblog.com/7531859/what-is-the-latest-pmbok-edition