Book Publishing: Books
Finding books and book chapters
Cambridge Publishing & Book Culture Series
Video of PSU Library catalog
Most databases support remarkable keyword searching capability which is great as the search engine finds the words you've used in your search statement. That said, there's another very powerful search strategy available to you, ie searching using a databases native subject headings or controlled vocabulary.
Academic library databases use the Library of Congress Subject Heading system in their catalog records. Some headings of potential interest for research in publishing include: