ahhh calibre is so useful, i really need to start organizing my fic collection with it (atm i just have them organized in folders, but nothing is tagged so i can't really find anything unless i remember the title and what it's about. i did try tagging stuff a few months ago through a spreadsheet but it got tedious so i gave up) but idk if i'll get around to it. because of the pandemic i think i'll have to start buying ebooks for school, so i might give calibre a try for organizing those and then tackle my fic collection some other time lol