I have a "sorry-i'm-not-a-librarian"-question: How do I catalogue several items that belong together? For example: I have a series for language learning: one workbook, one grammar and two audio cds. They are not a single kit containing all items but have seperate call numbers and can be used/checked out independently of each other. Nonetheless they are related and this information needs to be available to the patron. I thought I would set up a biblio containing the general information (title, author etc.) and have items for workbook, grammar, cds with their respective call number/barcode. Somehow this seems to be the wrong way to do it: - I can only have one item type (for the biblio, not for the item) -- but i want patrons to be able to find for example the cds if they search for audio materials -- so this seems wrong - I used "Materials specified (bound volume or other part)" to put "CD 1", "CD 2", "Workbook"… but that information only shows up in the staff client. When searching the OPAC I don't get this info, neither can I do anything with the items of the biblio (like, place a hold), I can only look up "Item type", "Call number" and "Status". There is also a field "Location", but it is empty (it is filled in the staff client). What is the correct way to catalogue several different items that somehow belong together? If I have to make a seperate biblio for each item, how do I connect them? Patrons should be able to see that (for example) there are also audio cds when they see the record for the books (etc.). I hope it is clear what I'm trying to do, any help is appreciated.