Knopf is holding a memorial for longtime advertising director Nina Bourne on Wednesday, May 19, at 4:00 PM at the New York Society for Ethical Culture (2 W. 64th St., New York, NY). The memorial is open to the public. Bourne died last month at the age of 93. She was best known for the advertising campaigns she created for such works as Catch-22 and the Eloise books.