Many university libraries, corporate libraries, and even public libraries subscribe to digital resources like O’Reilly Online Learning (formerly Safari Books). You can often read the entire PMBOK 7th Edition online for free through your library card.
You do not need to read the PMBOK Guide cover-to-cover like a novel. Here is a smarter approach: Pmbok 7th Pdf
Many reputable prep courses (like Rita Mulcahy, Udemy, or LinkedIn Learning) include a licensed copy of the PMBOK Guide as part of the tuition. Factor that into your exam prep budget. Many university libraries
If you are looking for a "solid paper" that analyzes the PMBOK 7th Edition Pmbok 7th Pdf