Besides the fact that I get to make up stuff? There isn't just one best thing... it was that moment when I found out that something I wrote inspired another person to read more. It was that time my daughter wrote "I want to be an author like my mom when I grow up." It's that one review where a reader comments on how they laughed or how they cried. That screaming teen that jumped up and down with excitement when I gave her a free, autographed copy of my book. That moment right before I click "send" or "publish" when I cross my fingers that I didn't overlook a typo and that someone out there will love my newest story. It's all these things and so much more.