The Book of Knowledge: The Keys of Enoch by Dr. J.J. Hurtak is a spiritual-scientific "code-book" published in 1973 that outlines a blueprint for humanity's evolution into higher consciousness. It integrates scientific, spiritual, and metaphysical concepts, presenting 64 "keys" that connect human evolution with higher universal intelligence and divine intelligence. The book is considered a complex and profound study, often requiring deep study to understand its philosophical, biblical, and scientific teachings.