The story of the cover:
The mysterious cover of Joy Division's 1979 debut Unknown Pleasures – a black-and-white visualization of pulsar data that looked like digital mountain peaks – is the subject of a new, in-depth Scientific American article. The magazine traced the origins of the "computer-generated illustration" to its first publication around 1970.
Brilliant. And the man who did it had to buy his own copy of the album in a shop--no free copies were handed out. He also picked up a poster of it as well, all on his own dime.