Listing a series so that it comes out in order?

Please pardon the question because I'm sure it has been covered many times before, but I have a couple of series of books (like Harry Potter) and I've got them into my library, but they are in a mish-mash
order.

I've looked on LibraryThing and can't seem to find what I'm looking for.

Does anyone have any tips for making them come out chronologically?

Thanks, Peter