[Joliet Jake]

I bought my first Kobo in 2014. I have had Calibre since *at least* 2018 and probably before. I currently have Calibre 4.23 because I didn't want problems with Amazon.

When I first got a Kobo, I bought some KEPUBs and got some free from their site. However I don't know how to put those books on a "shelf". In fact, Calibre cannot "see" those books. I can use Kobo Desktop to put the books on the Kobo, and everything is fine other than the books all landing in one "shelf". The covers are fine. These KEPUBs tell you where you are in a chapter.

Recently I learned about the Obok plugin and installed it. It found all the books and converted them to EPUBs. All of them have covers, and if I attach my Kobo Calibre "confirms" they have covers (I can see them, and the covers are visible in the appropriate folder). The covers are actually in the book themselves, so I don't need to modify the files.

However the covers never appear on the Kobo itself. I just get large text words as the title (the appropriate title). In addition, a 300 page book says it has 2000 pages (since the KEPUB to EPUB seems to make every single screen a page, but the text is perfectly clear unlike with a PDF). Am I doing something wrong to lose those covers? Is there a way for Calibre to directly interact with KEPUBs, perhaps there's a way to tell the plugin not to convert the books? (Every one of those books is available in Calibre as EPUB only.)

Note: even if I access the directory where Kobo Desktop stores downloaded KEPUBs, I cannot see them. I know they're there but they're hidden, and I've set my computer to not hide any files.

Guidance elsewhere told me I'm not using the Kobo plugins correctly. I have them installed but use them just to transfer EPUBs from Calibre to Kobo.