New tablet (Lenovo IdeaTab), new reader program (Cool Reader), and newly confused user: for my old tablet, Calibre would transfer extra files to allow the reader program to show the book's cover art, but so far all I'm seeing are bland generic covers. The docs for Cool Reader say that it doesn't try to extract cover art until you actually start reading a book (which is fine with me, because many of my books don't actually have cover art within the file), but it makes more sense for Calibre to save Cool Reader the trouble and just preinstall the cover art I've already designated for each book.
[Some less relevant notes about how I use Calibre and my tablet:
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Now it may be that the bland generic covers I'm seeing are just a side effect of only recently getting my PC to recognize the tablet (the MTP setting on this tablet is so well hidden that I'm still not sure how to get to it if I ever need to change it again), however, I suspect that the cover issue is more complicated than that. What else do I have to do to get the cover graphics loaded onto this tablet in a place and format that Cool Reader will recognize?