If you have any interest in neofascist movements or the dark underbelly of industrial music but ESPECIALLY the links between the two, I cannot recommend this book by @spencersunshine highly enough
I had the privilege of reading an early draft of it, and the sheer amount of information it contains is staggering, and you won't find any of it anywhere else
And so many bands that have spent decades playing the ARE WE NAZIS OR JUST PROVOCATEURS game collapse under Spencer's research