I've never had a book go under 10,000 copies, most go over 20,000 and of course Patriot's History is over a quarter million---maybe 1/3 million copies and in its 20th printing!
WOw are you kidding? If you don’t mind me asking how did you get a book deal? How did you get started? I never read my friends book so I don’t know how good it is, but I would assume being a very good writer is a great help.