Is your library collection really ageing?

As a member of the Management Committee for the School Library Association of NSW (SLANSW), I wrote a feature for their blog on determining the average age of books in your library collection.

Being a members-only article, I will not post it here in its entirety, but I will provide you with a link to the Awful Library Books Blog if you want to read up about the process, as it was a source that informed me in preparation of the article

I have found it useful as a starting block to weed books, especially if there are a lot of books to weed. It means that books that are not as old face the chopping block first.