I used my LibraryThing account to tag a book. Why won the tag show up in my OPAC?
As we filtered tags, we looked at what kind of tags a book has. To use Harry Potter as an example, many people have tagged it ‘fiction’ or ‘magic’. Because people get to tag books with whatever they want, a book might have personal tags like ‘blue shelf second row’, or straight-up wrong tags like ‘computer science’. By using popularity as an indicator at how ‘right’ the tags are, we sift out a lot of highly personal tags. So, for books in LTFL libraries to have new tags show up, the work must have a number of people who have all tagged it the same.
