From the wonderful 1987 collection New York Observed: Artists and Writers Look at the City (public library) ??? a compendium of lore and perspectives on Gotham dating back to 1650 and featuring such luminaries as Mark Twain, Helen Keller, Henry Miller, F. Scott Fitzgerald, and dozens more, edited by Barbara Cohen, Seymour Chwast and Steven Heller ??? comes a succulent love letter to the city from