Burning books is an inefficient way to conduct a war, since books and libraries have no military value, but it is a devastating act. Destroying a library is a kind of terrorism. People think of libraries as the safest and most open places in society. Setting them on fire is like announcing that nothing, and nowhere, is safe. The deepest effect of burning books is emotional. When libraries burn, the books are sometimes described as being “wounded” or as “casualties,” just as human beings would be.
Books are a sort of cultural DNA, the code for who, as a society, we are, and what we know. All the wonders and failures, all the champions and villains, all the legends and ideas and revelations of a culture last forever in its books. Destroying those books is a way of saying that the culture itself no longer exists; its history has disappeared; the continuity between its past and its future is ruptured. Taking books away from a culture is to take away its shared memory. It’s like taking away the ability to remember your dreams. Destroying a culture’s books is sentencing it to something worse than death: It is sentencing it to seem as if it never lived.
– Susan Orlean, The Library Book