 His area of focus was late-nineteenth-century French modernism.Panero became the monthly gallery critic of "The New Criterion" in 2003.Panero has written for "New York Magazine", "The New York Times Book Review", "The Wall Street Journal", "City Journal", "Philanthropy Magazine", "Forbes", "The International Herald Tribune", "Humanities Magazine", "National Review", "The Weekly Standard", "The Claremont Review", "The University Bookman", and "The Dartmouth Alumni Magazine".