Simon & Schuster has made four promotions in its publicity department.

Julia Prosser has been named assistant director of publicity. Prosser has worked with many authors, including David McCullough, A.J. Jacobs and Nicholson Baker. Kelly Welsh will now serve as senior publicity manager. Welsh has lead PR campaigns for Jeffery Deaver, Cara Hoffman and Jeff Guinn.

Michelle Jasmine has been named publicist. Jasmine began as a marketing intern and has worked her way into the publicity department. Margaret Kingsbury has become an associate publicist. Kingsbury came from a previous position as a radio producer.