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How to book_count
Only for fun, I like to see how many books I own by an author which are not read yet.
Plugin ABC counts all books per author. Adding a query or reducing to a virtual libary is not possible.
Now I try to play around with buildin function.
Book_count should solve it but is is not available in the template drop down list. Although it is well documented in the calibre manual.
Can anyone give me some help here?
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