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Let me add to the answer of Tom Au that this is essentially the question of funding. For example, Soviet Union also had a library which had a "mandate to collect everything". This was the Lenin Library in Moscow. The job was facilitated by the law which made it mandatory for every Soviet publisher (actually every printer) to send a free copy of anything ...


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The Library of Congress is the "Great Library" of our time. It was designed as such, because it serves the Congress, President, and other leaders of the United States. Early on, it was "seeded" with the entire personal library of (former) President Thomas Jefferson. Thereafter, it had a mandate to acquire two copies of every book published in the United ...


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