Technical books need to be preserved. Most inventions are based on old ideas or discovering hidden structures that can be used in another domain. If we have not

Technical books need to be preserved. Most inventions are based on old ideas or discovering hidden structures that can be used in another domain. If we have not preserved Darwin's books, we may not have advanced in genetics now. The pity is there is a misconception that "you can find every thing in internet"- it is not true. Most African countries lack technical books. So, please don't through those books rather find a philanthropist who can build a library of technical books.Most teachers will find that not one text book is not enough to teach a subject and can find examples from other books. Is there a national institution to preserve technical books.