Whats the difference?

Word count. A novel contains at least 120,000 words. A book can contain anywhere from 80,000 to 120,000 words. A novella has 60 to 80,000 words. I only know this because my brother has finally finished writing his book, only to find that to reach novel status, he has to add an additional 40,000 words. So he is working on expanding his chapters and maybe adding a chapter or two.

I don't understand what you mean for a novel may printed into a book. Do you mean the difference between a novel and something else like a short story or prose, etc?

a novel is fictional. a book can be fictional or nonfictional.