The Open Syllabus collection contains WARC files from a mid-2021 crawl of about 50 million unique seed URLs extracted from the Open Syllabus version 2.6 dataset and their page requisites. The bulk of the seed URLs are from ".com", ".org", ".edu", and ".uk" TLDs.
Each of the prefaces and prologues in this volume is a complete work of literature unto itself, offering a unique insight to the thoughts of its author.