It's been shared widely!
But it seems fake.
The actual numbers:
000 Computer science, knowledge and systems
000 Computer science, information and general works
001 Knowledge
002 The book (writing, libraries, and book-related topics)
003 Systems
004 Data processing and computer science
005 Computer programming, programs and data
006 Special computer methods (e.g. AI, multimedia, VR)
@JeffGrigg @frankkrueger depends on library :)
Oh, so there are some variants:
001.9 Unexplained, UFO’s, Bigfoot, etc.
004 – 006 Computers