Yesterday I saw the first evidence of large-scale book vandalism at my current library, where I have been employed for over 9 years. I initially noticed three books in the 300s (DDC), including one about the Kent State shootings, with spines cut off. Shortly after our Circulation staff and students found multiple books (up to 400) in the 200s, especially 238s (Christianity, catechisms, creeds, etc.) had either spines cut off or tops or bottoms of spines ripped off. No spines or other evidence has been found on the shelves or in the trash. Given the lack of remains being left around, the instances seem to point to an end purpose of the defacing, e.g., using the book spines for an art or design project, making a craft to sell online, etc.
If your library has had instances of similar vandalism, have the perpetrators and a motive been found? Also, what have your libraries done to reduce the likelihood of recurrences?