I have 17,000 words worth of notes for the first chapter of my book which is on postmodernism and I haven't even got to the 12 books I have at home & the 16 reserved at the British Library yet which discuss it, let alone the 2 dozen primary sources.
I discuss that here: https://areomagazine.com/2018/02/07/no-postmodernism-is-not-dead-and-other-misconceptions/ … Kimberle Crenshaw articulated it most explicitly but the same general process happened all over.