Potential subject heading searches:
Comic books, strips, etc -- History and criticism
Graphic novels -- History and criticism
How Do I Find Comics and Graphical Novels or Books in Furman's Library?
Go to the catalog and do an advanced search. Search Subject contains comic books, strips, etc
To find manga try Subject contains graphic novels—Japan
Here is a short video to show you how to search for, and then find the actual books to check out.