What do you think was significant about the book entitled the whistler? Is there a common theme that connects the books that liesels has stolen?

When Liesel calms everyone in the bomb shelter by reading The Whistler, she begins to realize the power of words to affect human emotions. Even the feud between Frau Holtzapfel and Rosa subsides when Liesel begins reading to the former.

Source(s): http://www.gradesaver.com/the-book-thief/study-guide/section8/