What makes art in general, and literature in particular, remarkable, what distinguishes them from life, is precisely that they abhor repetition. In everyday life, you can tell the same joke thrice and, thrice getting a laugh, become the life of the party. In art, though, this sort of conduct is called 'cliche.'
On the whole, books are indeed less finite than ourselves. Even the worst among them outlast their authors - mainly because they occupy a smaller amount of physical space than those who penned them. Often they sit on the shelves absorbing dust long after the writer himself has turned into a handful of dust.
On the whole, infinity is a fairly palpable aspect of this business of publishing, if only because it extends a dead author's existence beyond the limits he envisioned, or provides a living author with a future he cannot measure. In other words, this business deals with the future which we all prefer to regard as unending.
Basically, it's hard for me to assess myself, a hardship not only prompted by the immodesty of the enterprise, but because one is not capable of assessing himself, let alone his work. However, if I were to summarize, my main interest is the nature of time. That's what interests me most of all. What time can do to a man.