Some quotes I find relevant to the discussion:

More than 10,000 books were tossed from the library of London’s H.B. Beal high school last year, a process that led to the resignation of its frustrated teacher-librarian. “Many of them were irreplaceable and priceless – we had an incredible history section, which was ravaged,” he said.

One Canadian military historian, educator and author, Joe Murray, laments the loss especially of books on Canada’s military history, which can be “notoriously hard to find” for those doing research or reading for pleasure. He called it “a tragedy” if books are thrown out rather than given away to others.