Looking for books on public relations itself?
The subject heading is the same -- "public relations". Can browse HD 59, though some are in HM 1221, a social psychology section. (There are some in HM 263, but all of these are older books, in a call number area no longer being assigned.)
On writing for marketing/public relations?
Try this search query -- "public relations" (writing OR authorship)
On graphic design or layout?
Try this search query -- "graphic design" OR "graphic arts" OR "visual design" [any other keywords]
You will run across eBooks on different platforms in the EWU Library Catalog. In some platforms, the books are just PDFs. And you can view page by page any of the eBooks.
But some require software to download and check out a copy (usually for 14 days). You will need the following: