Where does "genre" metadata come from

Hi all,

I asked this question on the Calibre sub-forum and the creator of Calibre told me I needed to ask the Pocketbook team :)

I like my library sorted a certain way and have remove all the metadata that is not "author, "title", and "series". I removed ALL the tags from ALL the books, several times! And yet when I look at my library on the Inkpad and sort by genre, I get a million different genres and sub-genres... which drives me crazy.

Anybody here can tell me where that metadata is drawn from? I'd like to get rid of this mess!

Hope everyone is staying safe !

Kami

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