The Book of Enoch and the Book of Jasher are two very important "lost books" of the Bible. The Book of Enoch (1Enoch 1:9) is quoted in Jude 1:14-15 "Did not Enoch seventh from Adam prophecy saying" and the Book of Jasher is cited in Joshua 10:13 "Is this not written in the Book of Jasher" and 2Sam. 1:18 "Behold it is written in the Book of Jasher."
We now have special Study Editions available for each of these books. Each is filled with hundreds of helpful study notes and study helps. These volumes are filles with cross references citing the Scriptures, the Apocrypha, the Dead Sea Scrolls, Talmud, Midrashim, Zohar. Each is a fresh translation from the oldest available texts.