A catalogue of errors

EducationGuardian.co.uk: How many books written in seemingly obscure languages are misfiled and languishing unfindable in libraries? Joyce Flynn’s experience at Harvard suggests the answer is: a lot.
Flynn, a researcher in Celtic languages, discovered some common mishaps that no one discusses much.

Sometimes, cataloguers and shelfers did strange things with books written in foreign languages. They mangled the catalogue listings, and tucked the books away on the wrong shelves.