Question: What subject in his essays does the author of the 1999 American graphic novel "Bread and Wine: An Erotic Tale of New York" focus on?
Sentence (from "Bread and Wine: An Erotic Tale of New York"): Bread and Wine: An Erotic Tale of New York (also stylized as Bread & Wine) is a 1999 American graphic novel written by Samuel R. Delany with art by Mia Wolff.
Relevant evidence: Yes