On the advice of the State Librarian one fine day in the 1970s, a truck transported thousands of books and magazines from Pretoria’s Central Police Station to a dark hall at the Iscor state steel company, just outside the South African capital. A large mechanical shovel scooped up and dropped them into a 20 metre high oven, causing it to spew flames and smoke. This was another truckload of material that had been banned for political reasons and was routinely burned in furnaces across South Africa from the 1950s to the 1970s.
Historical examples show that books are banned and destroyed because they offend the politics, morals, or religion of the day. Information science academic Rebecca Knuth, wrote in Burning Books and Leveling Libraries that if a regime is racist, it destroys the books of groups deemed inferior; if nationalistic, the books of competing nations and cultures; and if religiously extremist, all texts contradicting sacred doctrines.