Not sure what your point is. 1984 is available at my middle school, high school and public libraries and every book store. Not available at elementary schools because it is generally above grade level.
The purpose of the ministry of truth was to redact and rewrite history. Shape peoples thoughts, their vocabulary and show them how good they have it compared to their primitive ancestors. (Those naked bare foot people who build all those megalithic structures, castles and cathedrals) History should of course have a carefully engineered list of banned books.
The work is never done, after removing the books with practical tutorials, blue prints and historical revisionism you always continue to have a candidate at the top of the list. The work that remains now are all fictional books that portray an uncomfortable reality.
After those are all gone the new reality will again have a most terrible book. The work is never done.
