on Jane Friedman site:
Certain words and phrases are bandied about all the time in publishing, but they don’t always make sense. One of the biggest is author platform. You may have attended enough writing seminars and conferences to recognize that even people in publishing aren’t consistently using the term.
How and where authors reach readers: that’s platform. It’s a combination of four factors, and let’s use the TV show Gilmore Girlsto help visualize it.
wordrefiner 