I was surprised to not find a thread on Artaud here! Not only historically influential across avant garde theater, film, and art generally, but also an important reference for Deleuze and Guattari with his "body without organs." On this basis, Artaud's significance in industrial music has always been present, either explicitly or implicitly across its thematics, performance techniques, and philosophical orientation(s). To paraphrase Sylvere Lotringer, he's one of the moderns who lived history in the future perfect...
My formal introduction to him came through The Theater and Its Double, but I had largely put him off until the recent publication of David Rattray's translation of To Pass Final Judgement on God.
Infinity Land Press seems to be the one place republishing many of his works, but I am uncertain how I feel about the incorporation of contemporary illustrations from the publishers themselves...