Hello Code4Lib, It's with great sadness that I have to relate that Safiya Noble has had to withdraw from her Code4Lib 2019 keynote engagement for personal reasons. Luckily, Dr. Noble suggested that her colleague Sarah Roberts take her place as Dr. Roberts works on similar issues and the two have published together in the past. We are very fortunate that Dr. Roberts was available to speak on such short notice! *Sarah T. Roberts* is assistant professor of information studies in the Graduate School of Education and Information Studies at the University of California, Los Angeles. She is internationally recognized as a leading scholar on the emerging topic of commercial content moderation of social media; her book on the topic, *Behind the Screen: Content Moderation in the Shadows of Social Media *[1], is forthcoming in 2019 from Yale University Press. Professor Roberts is a 2018 Carnegie Fellow and a 2018 winner of the EFF Pioneer Award. [1] https://yalebooks.yale.edu/book/9780300235883/behind-screen I look forward to seeing many of you in San José next week! Best, Eric Phetteplace on behalf of the Code4Lib 2019 Local Planning Committee