I sometimes, quite often, get a hankering to read a particular type of story. Not just say a ghost story but a ghost story with maybe a creepy graveyard in it.
Now browsing through your book covers and synopsis in Calibre wont always tell you what exactly a book is about, sure there's a creepy house on the front and the synopsis says it's full of ghosts and the genre is ghost stories, but is there a creepy graveyard?
To get over this I've added a custom column titled theme, and in this I will populate it with keywords for the story, creepy house, graveyard, battles in space etc I think to stop this becoming totally unwieldy I will have to create a list of standard phrases so I don't end up with say Space Battles and Battles in Space.
I also need to figure out how to stop it becoming too specific to each individual book, perhaps creepy graveyard would be too specific and instead creepy atmosphere
Some figuring out needed, but that's half the fun!
Has anyone else done something similar?