Guess who’s coming to the Library’s landmark 42nd Street building on Friday, Aug. 3? That’s right, Sesame Street’s one and only Cookie Monster is joining celeb chef Rocco DiSpirito at the Stephen A. Schwarzman Building at 10 a.m. for a free cooking demonstration for kids, part of our KidsLIVE series. Rocco will make (and distribute) healthy cookies, teaching children that food can be both healthy AND delicious. Rocco’s Now Eat This! Food Truck (a non-profit venture