The phrase "publicity department" refers to a specific part of an organization or company that is responsible for managing and promoting its image or information to the public. Full definition
Publicity departments at small, independent presses tend to work hard and have fewer authors and books to focus on, but they also have fewer resources than the big publishers. (cslewispublicity.com)
Media director is in charge of planning and supervision of media programs in publicity departments. (sampleresumeobjectives.org)
One of the advantages of being published by a major, traditional publisher is that you'll have the support of the publisher's in - house publicity department. (thebalancecareers.com)