The official APMG product page currently links to supporting documents such as Introducing the AIPGF and the AIPGF White Paper.
Check those documents first when you want vendor language, official framing, or a cleaner understanding of how APMG describes the framework beyond the short product-page summary.
Confirm the current certification name, delivery details, documentation, and provider framing on the official APMG page.
Then work through the main chapter pages if you still need conceptual coverage, or return to the Cheatsheet and FAQ if you are already in last-mile review.
When you are ready to drill, use the local Practice handoff.