The cover of a new book about Auschwitz is shown in the photo below:

New book : The Librarian
The librarian of Auschwitz? Wait a minute! Auschwitz was a death camp where Jews were gassed to death. Were the Jews actually reading books — not being gassed to death?
The following quote is from the news article:
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Based on the experience of real-life Auschwitz prisoner Dita Kraus, this is the incredible story of a girl who risked her life to keep the magic of books alive during the Holocaust.
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So the prisoners at Auschwitz were not allowed to read books? In spite of this, books were being sneaked in?
The prisoners at Auschwitz were allowed to receive letters and packages, according to the many books written by the survivors. Did the Nazis open the packages and take out any books that were in the package?