The quickest way to find all books with literary criticism about an author is to do a subject search for the author's name and the word "criticism" as noted in the example below. Try it!
The best way to find literary criticism about a particular piece of literature is to use the title of the work and the word "criticism". If it is a very common piece of literature and there is a particular theme you want to explore, you can also include that theme. See the examples below and try it!