Regardless of what genre you write one truth is universal for all writers: You must make the reader want to turn the page. The reason doesn't matter so much as the actual desire for them to do it. If you cannot keep them reading chances are they won't make it out of the store, or offline with your book in hand or downloaded.
How do you achieve that golden element needed in a novel? That's easy, tension. Okay, it's not that easy, but if you keep that one thing in mind at all times and work it into every page you will have succeeded. I know what you're thinking, 'no way Heather, I don't write thrillers, or suspense, or mystery (fill in any genre you like)'. But any book and every book has tension, because it must. Widen your definition of tension.
Grab any book off your shelf and read the first page. Now think about what made you want to turn it. Something was going to happen, something was at risk, or there was a key element you were dying to know. That's tension! Someone could be in physical peril, mental peril, a relationship could be at stake, or a life, but the imporant thing is something is happening. Tension doesn't have to be something huge, it can be something small if it's important to the character. Just as every page must have tension, every chapter should end with it as well. The reader has to look forward to finding something out when they come back. Will he kiss the girl? Will she survive the accident? Who killed the man? Will she dance with him? It doesn't have to be huge, just leave them wanting to know.
Check out this Writer's Digest article on making your book a page turner: http://writersdigest.com/article/how-to-make-your-novel-a-page-turner/