I usually avoid first-time authors who don't already contribute articles to an outlet (HBR, Economist) or don't have a blog and are releasing a book as their fi

I usually avoid first-time authors who don't already contribute articles to an outlet (HBR, Economist) or don't have a blog and are releasing a book as their first stop in publishing. It usually means they are more interested in selling a book and become famous rather than sharing information, leading to poorer quality work. I have found that this has held true with reasonable accuracy.