Quote:
Originally Posted by SteveEisenberg
AFAIK, most major publisher author income is from advances.
How do these folks find out those figures?
Perhaps they ignore the advances major publisher authors receive, instead basing statistics on the royalties authors would receive if they ever earned out their advances -- something they usually don't. If so, a lot of the statistics make little sense.
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Good question since most of that information isn't public. Amazon sure isn't publishing it. There is an old expression in the computer world, Garbage in, Garbage out. My guess is that they take the information that's public (i.e. author blogs, Amazon rankings, etc) and extrapolate.
After going back through their expressed methodology, I'm fairly skeptical. As far as I know, Amazon lists ranking, not actual number of sales. Am I wrong about that?