@iggy I recommend reading the Book of Moses, found in the Pearl of Great Price. Yes, it is cannon for The Church of Jesus Christ of Latter-day Saints. It has a lot of information about Enoch.
https://www.lds.org/scriptures/pgp/moses/7?lang=eng
Chapter 7 is about Enoch.

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I'm curious to read the Book of Enoch you linked. Thanks for sharing!