The Book of Enoch Explained offers an in-depth analysis of this ancient text and its connections to ancient Mesopotamia. Although evidently widely known during the development of the Hebrew Bible canon, 1 Enoch was excluded from the formal canon of the Tanakh, the canon of the Septuagint and subsequently from the writings known today as the Deuterocanon. Why? The first part of the Book of Enoch describes the fall of the Watchers, the angels who fathered the angel-human hybrids called Nephilim. The remainder of the book describes Enoch’s revelations and his visits to heaven in the form of travels, visions, and dreams. Most scholars believe that the five sections of Enoch were originally independent works (with different dates of composition), themselves a product of much editorial arrangement, and were only later redacted into what is now called 1 Enoch. However, the narrative is much older than even modern scholars acknowledge.