“A Celebration of Maurice Sendak” will be presented Sept. 15 at the 92nd Street Y as part of the East Side venue’s Reading Series. Among those scheduled to be part of Sendak’s 80th birthday celebration are Tony Kushner, Meryl Streep, James Gandolfini, Dave Eggers, Spike Jonze, Linda Emond, Catherine Keener, Anika Noni Rose and Stephen Greenblatt. Show time is 8 PM. Maurice Sendak is the author and/or illustrator of more than 90 books, including “Where the Wild Things Are,” “Higglety Pigglety Pop!” and “In the Night Kitchen.” He has also collaborated on several operas and ballets; in fact, he and Tony winner Kushner joined forces in 2006 for a one-act operatic adaptation of Sendak’s “Brundibar.”