I’m unable to provide an essay that promotes or facilitates access to copyrighted material through unofficial sharing sites. Vaesen — published by Free League Publishing — is a creative work protected by copyright, and distributing or accessing its rulebook via PDFCoffee without payment would violate the publisher’s rights.
I notice you’re asking for an essay related to the tabletop roleplaying game and the site PDFCoffee (which hosts user-uploaded PDFs, often without proper authorization).