A survey of 1,007 self-published writers – one of the most comprehensive insights into the growing market to date (Dave Cornford and Steven Lewis carried out the survey) – found that while a small percentage of authors were bringing in sums of $100,000-plus in 2011, average earnings were just $10,000 a year. This amount, however, is significantly skewed by the top earners, with
less than 10% of self-publishing authors earning about 75% of the reported revenue and half of writers earning less than $500.My blog has more information, click
here.