I think this book is practically about THE Illuminati (i think, i've not actually read it the creature from jekyll island THE book on archive dot org
I think there are 'illuminates' in all sorts of ummm religions/faiths and stuff, similar to 'black belts' like a black belt in what? so here an Illuminati of what?
tho some sort of power above it all, probably the power thats controlling the UN/EU/WEF etc might be called the Illuminati, but whatever they called i don't think much matters. i prefer 'them'!