==Origin==
Trent Reznor's decision to use a numbering system for his releases stemmed from the fact that Depeche Mode had already come up with a similar system, using STUMM for albums and BONG for singles.[http://www.reddit.com/r/IAmA/comments/134vgv/i_am_trent_reznor_of_nine_inch_nails_and_how_to/c70u4mg?context=3]
== Halos ==
|2016
|EP
|The first in a trilogy of related EPsreleases, and first NIN release to include [[Atticus Ross]] as a member.
|[https://store.nin.com/collections/music Find it on nin.com]
|-
|2017
|EP
|The second in a trilogy of related EPsreleases, preceded by ''Not The Actual Events''.|[https://store.nin.com/collections/music Find it on nin.com]|-!style="background-color:#c8c8c8;" | 32|''[[Bad Witch]]''|2018|LP|The third in a trilogy of related releases, preceded by ''Add Violence''.
|[https://store.nin.com/collections/music Find it on nin.com]
|}