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Steven Karp · 03-09-2026, 05:39 PM

I hope I haven't missed a discussion already...

I'm trying to find non-duplicates between two libraries.

Specifically, I have one library for myself and one for my spouse. I add books to my library, clean up the metadata, and then use the "copy to another library" function to add them to the other.

However, right now my library shows 6,761 books. My spouse's library has 6,733. (FWIW, Duplicate Finder shows 6,713 dupes, which probably means I need to do some metadata cleanup as well as copying the missing titles. Kudos to the plugin and its developer for finding more work for me!

)

Is there a way to use this plugin (or some other technique--I'm not fussy!) to identify those 28 books that are in my library, but not in my spouse's?

03-09-2026, 05:39 PM	#1127
Steven Karp Enthusiast Posts: 43 Karma: 10 Join Date: May 2014 Device: Windows 10 Tablet / Calibre or Nexus 9 / Moon+	I hope I haven't missed a discussion already... I'm trying to find non-duplicates between two libraries. Specifically, I have one library for myself and one for my spouse. I add books to my library, clean up the metadata, and then use the "copy to another library" function to add them to the other. However, right now my library shows 6,761 books. My spouse's library has 6,733. (FWIW, Duplicate Finder shows 6,713 dupes, which probably means I need to do some metadata cleanup as well as copying the missing titles. Kudos to the plugin and its developer for finding more work for me! ) Is there a way to use this plugin (or some other technique--I'm not fussy!) to identify those 28 books that are in my library, but not in my spouse's?