How do I add a box set?

[Caroline]

i just wondered how I should enter a box set? I bought the pirates of the caribbean in box with the three movies in the book edition in norwegian. If you understad what i mean. How do i add this?

[rivka, Former Moderator]

Does the box set have a single ISBN?

[Caroline]

Yes, it does.

[rivka, Former Moderator]

Then you add it like any other book. Example

[Caroline]

Thank you for the help!