"What is the measure of success? It rather depends upon which side of the artistic scales you choose to put your weight, although, in truth, the measures all tend to blend together at some point, complementing one another. From the writer's perspective, was the book one of which to be proud? Did it achieve what the writer set out to do artistically? (A third question, albeit one that can't be answered immediately after publication, is one of influence. There are a great many influential books that may not have sold in huge quantities, but affected the way that others viewed literature, or even the way that subsequent writers approached their work. In musical terms, it was said that only a handful of people bought copies of the Velvet Underground's first album, but all of them went out and formed bands afterward . . . )"
From the "and
another thing..." weblog, by John Connolly