The first is an enigmatic book of bottomless teachings. The second is robust with a unique knowledge of Satanism down a devil worshipping route. Improve life through the magic of Satanism and find your calling. You will become stronger and more magically competent by doing so. These books will show you where. After all it is The Devil's World and understanding it from a Satanic perspective is to master it. That is the road to happiness offered by no other but Him, our Master, Satan.