Knopf will hold a celebration of the life of Joan Didion on Wednesday, September 21, beginning at 5 PM, in New York at the Cathedral of St. John the Divine, 1047 Amsterdam Avenue. Speakers will include Hilton Als, Gov. Jerry Brown, Griffin Dunne, Justice Anthony Kennedy, Susanna Moore, Vanessa Redgrave, David Remnick, Patti Smith, Jia Tolentino, Calvin Trillin, and Kevin Young. The service is open to the public and a livestream will be hosted on the Cathedral’s website as well. Didion died on December 23 at the age of 87.