Author Ian Rankin wrote: "So a debut novelist, garnering good quotes from famed authors for the cover plus good reviews, can expect to sell only a few hundred copies."
Which means this article
seems ever more appropriate for the aspiring writer.
There was an interview here with the translators of the latest Dan Brown novel. They apparently were more or less locked up in a bunker for 2 weeks with other translators from all over europe. Only 1 computer available with internet connection for research purposes. Translators from 2 countries iirc were not invited because they had leaked the last time. For some reason I find the contextual information to slowly become far more intriguing than the actual writings.