As part of the French Institute Alliance Française’s FIAF Fall Fstvl, “Crossing the Line,” artist Fanny de Chaillé (above, in the library’s balcony overlooking the stacks) introduced a new take on storytelling at the Jefferson Market Library on Fri., Sept. 27. Twelve storytellers each told his or her own “book” in 20 minutes to members of the public, one on one, with ongoing exchange between teller and listener. The storytellers each had their name on the back of their T-shirt and their “book”’s name — one was “In Search of Lost Knishes” — on the front. The storytelling posts were set up throughout the Sixth Ave. library’s second-floor stacks.