Traditional genre categories very often fail to identify a book's truth wealth.
UNBREAKABLE is classified as a Science Fiction or Military SF novel, maybe a Marine or adventure story, or a space opera. But it's more.
You may not care for science fiction, or military adventure. But what about tales of living through and overcoming loss? Or stories about Mother/daughter relationships? Or frontier adventures? Or political intrigue?
UNBREAKABLE is far more than just science fiction.
Here are a few tags to illustrate the point:
#MotherDaughterStory(perhaps my favorite tag)
Is it time to #TagYourBook? I believe so. Here's a great post on the subject.