When you want to find out which books Queen's Library owns by a particular author, or, if the book title is common (for example, Introduction to Sociology), perform an Author search, from the Advanced Search screen in Omni.
For example, to determine what books Queen's Library has that are written by Karl Marx, do the following:
Click on "Advanced Search", select "Author field" , choose "is (exact)", and select the appropriate "Resource Type" and click "Search".
The search results will list all of the books at Queen's Library that are written by Marx.
Use the Availability filter to filter to books that are Available in Queen's Library (physical books), or ebooks (Available online) or Open Access (freely available online):