4 ms·
Most book sales are done within 5 years. It's drips after that. On top of that, knowledge moves too fast these days for a 20 year right to be useful for societ
by onlypositive 3y ago
Most book sales are done within 5 years. It's drips after that.
On top of that, knowledge moves too fast these days for a 20 year right to be useful for society.