I can't speak for all printers, but at my place:
Say you were designing a 16 pp brochure.
I would just require you to set up your document, pages 1-16, in order (ie. front cover, inside front cover, pages 1-12, inside back cover, back cover). If your design idea requires you work in spreads that fine, but then I would want you to PDF it to single pages, running in the order described above. I don't find it helpful to be sent printers pairs or anything like that, as I just have to split what you've created into single pages so I can impose it.
In summary, just set up your document pages 1-16 (or whatever) as described, and send the file as a print ready, single page PDF in correct running order with bleed etc. - I sort out the imposition.
All you would be required to do, is give the sales representative the information required (how you want it binding, number of pages, size, any special finishes etc) but all of this should have been done already in order for you to recieve a quote. If you are in any doubt about certain areas, for example, you may wish to have your cover spot UV'd, and you aren't sure of how to set this up, call your printers and they will be more than happy to tell you how to do it. This is a much better practice than guessing, as it means your job will be processed faster, and correctly, and you build up a good relationship with your printer as someone who cares about doing it right.
As I said, this is how it would work at my place, it's always good to talk to your chosen printer and ask them what their requirements are. If you get fobbed off by sales staff (who may be busy, or unaware of requirements themselves - I know, but it does happen!), just ask to speak to pre press. :icon_smile: