Reddit mentions of The Invention of Satanism

• Works of Don Webb
  
  
• Works of Michael Aquino
  
  
• Lords of the Left Hand Path by Stephen Flowers
  
  
• Stairway to Heaven Chapter 1 and The Dark Lord by Peter Levenda.
  
  
  
• Fire and Ice by Stephen Flowers
  
  
• The Invention of Satanism

Please read the sticky in this sub. Otherwise, many of the answers to the questions you're asking here can be found in books, so I'm going to recommend some:

1. The Satanic Bible. If you're interested in Satanism, this is one of the best places to start. You'll probably find a lot of the answers you're seeking within its pages. It's a short read, might take you a day tops to get through it.
   
   
2. The Invention of Satanism. This is an excellent academic text. It has no agenda outside of providing history on Satanism itself as a religion. It covers early origins of Satanism (aka devil worship), the romantic Satanists such as Milton and Blake, the beginnings of the Church of Satan and LaVey's origins, the Temple of Set, all the way on up to modern day with The Satanic Temple.
   
   
3. Lords of the Left Hand Path This would be considered more advanced reading, as it delves into a general Left Hand Path philosophy rather than focusing just on Satanism. It's a dense book, but will go a long way to filling in the 'sacrifice, magic, evil' part of your post.

According to the 2016 book "The Invention of Satanism", Satanism is the only "new religion" that is more male than female. In fact the large majority of Satanists are said, by the same book, to be young males.

I can't speak to the racial makeup of the Satanist demographic but I do have my own pet theories.