Bacon, cheese slices and sawblades: the strangest bookmarks left at libraries

One US librarian has begged borrowers to stop using perishables to mark pages – but there are reports of stranger materials pressed into service

What is the cheesiest book you’ve ever read? For Washington DC librarian Anna Holmes, it wasn’t so much the book, as the slice of Kraft American that she found inside it, clearly used by a cheese-loving patron as a bookmark. The library branch has seen three “cheese bookmark” incidents to date, according to Holmes, who made a plea on Twitter for readers to “PLEASE stop using cheese as a bookmark. Please. We give away actual bookmarks for free. Or like use a receipt or something. Just not perishables.”

Whiffy as that sounds, that trio of dairy product delinquents are not the worst offenders, librarians across the world have revealed in response to Holmes’s plea. There are those who use banana skins, broccoli (“It ...