Foundational work has stood the test of time. Touches on many aspects of esoteric thinking and traditions. 35 hours of content is a blessing, but comes with pitfalls: more than one occasion you’ll hear a “second take” that the editors failed to edit out. The narrator is quality, with a voice like butter. That only makes some of the mispronunciations of English words a bit mystifying (pronouncing “typified” as “type-ified more than once through the tome). Having said that, I know a thing or two about language mastery, and I’m not sure I would be willing to undertake a similar challenge. So, respect due. Overall, a huge achievement, only missing the visual accompaniment while listening.