Balaji, raised this suggestion to me earlier, honestly I'm undecided about it, reason behind I stick to 3 is for simplicity reason, coz we human seem to associate easier to 3 categories, like, "good, better, best", "less salty, salty, very salty". :)
While for an unfinished book at the moment, if I still want to read it, I'll put it back to wanted, while if I don't want to read it anymore, I'll put it under read, and probably give a bad rating/review. If I need to relook at it, I'll probably tag it, a bit more work.
I know it may be helpful to introduce "Abandoned/Unfinished" category since we may encounter it once in a while. Thus I'm still undecided as it's going to impact the simplicity of the categorisation.
Since, BookJetty is what we all are going to use, and it's quite a major change, I'd love to hear what's your thought on it. Thanks!