So you'll need an entrepreneurial mindset to undertake a serious self - publishing career, and a willingness to learn the business of publishing. (iwritermagazine.com)
When I read statements like the one above the first thing that occurs to me is: has the author learned this business from the ground up? (remonline.com)
I'm also glad I'm realizing this now, now all I have to do is learn this business in and out so I can be great at it. (biggerpockets.com)