Cartoonist Ben Katchor, creator of the weekly comic strip, Julius Knipl (ka-NIP-le), Real Estate Photographer. Through his comic strips, Katchor has been an astute and witty commentator on New York in particular and urban life in general. His new book, “Julius Knipl, Real Estate Photographer: the Beauty Supply District” (Pantheon), is a novel that incorporates some of his single-page strips from the last few years. Katchor has been syndicated in alternative newspapers and magazines since 1988.