Hard data is difficult to find when you are self-publishing. I have no idea how many that bought it heard about it, or what it was that appealed to them enough that they bought it.
So, a quick question to anyone that shows up here- how did you find the title? The obvious choices are: Follow The View From North Central Idaho, saw the Odds ‘n Sods post at Survival Blog, saw the Book Plug Friday post, saw the comments in Ace’s Sunday morning Book Thread., or saw it in one of Amazon’s top sellers list like these. And, of course, the three people I know personally and sent an email to :-). Any other ways? Let me know!