books that are fun to read
literary fiction are books that you are forced to read, or as mark twain put it, books that people own but never use!
haha that was a bit of a stereotype, I have a friend who thoroughly enjoys books like all quiet on the western front, or the sun also rises, but hates harry potter and hunger games with a passion
but if the purpose is to entertain, its commercial, if its supposed to teach something, then its literary, if it does neither, its one of those backwards books the scary people in my college read haha