"Author income" refers to the money earned by someone who writes and publishes books, stories, or other written works. It is the financial compensation that authors receive for their creative writings. Full definition
The nature of authors income is not a normal distribution. (terribleminds.com)
There's not much out there about author incomes, except for the exceptions. (jimchines.com)
I think it remains to be seen whether the subscription model as it currently stands has a long - term, measurable effect on author income. (bookwyrmshoard.com)