How to Properly End a Book in InDesign

How should the end of my book file look in InDesign? Is it ok to end with a spread, or do I need an extra page like in the image? What Is standart?

Community Expert

Normally a book must be divided by 4. First and last page are single page spreads,

Known Participant

@Willi Adelberger So like this would be correct?

Known Participant

@Willi Adelberger Or like in my example in the task description?

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