The first literature published in book form by Anton Szandor LaVey was the founding canonical text for Satanism: "The Satanic Bible." In it, he describes the many different stances each individual Satanist might find him/herself taking, why those positions and attitudes that accompany them are Satanic, and why he is justified in calling them such. The book offers a big-picture overview of what is Satanic, and offered the world a glimpse of what real Satanists do, all from the pen of a man who lived it - that is, from the pen of one bold enough to call himself a Satanist.
"The Devil's Notebook" is immensely personal. LaVey writes for an audience, to be sure, but I often got the feeling while reading it that I was being let in on some of the secrets he'd kept that he'd thought appropriate only a select few to know. Where "The Satanic Bible" offered the framework of Satanism, this volume contains something more akin to LaVey's personal manifestation of Satanism. Subjects range from humor and magic to werewolves and Frankensteining - that's really the best way I know how to put it. Keeping in mind the definition of magic used in "The Satanic Bible," ("change in situations or events in accordance with one's will, which would, using normally-accepted methods, be unchangeable") he spends a lot of time on the concept. The nuances he's noticed over the years regarding what's worked and what hasn't resulted in such pieces as "The Law of the Trapezoid," "Hatha Toilet Seat Meditation," and "The Combination-Lock Principle." These and several other essays build up to sheet music for "The Hymn of the Satanic Empire." From there, he offers observations about people, amusing anecdotes about past de facto Satanists, a description of a ritual a Satanic magician can use if s/he wishes to transform into a werewolf, a deep discussion of emulating Dr. Frankenstein, and several aphorisms, among other things.
For those who have never read LaVey's work before, this may offer a good sense of the way he writes. It feels fairly intimate, and his writing is never too terribly esoteric. If the reader is a Satanist, s/he may find multiple layers of meaning in these texts. For those unfamiliar or new to Satanism, this text may or may not offer the desired overview. It will, however, offer a glimpse into the personal perspective of a Satanic master. He wrote to an audience of Satanists, and understood that contextual power.
Reader beware: You may like what you find more than you thought you would!