At the library catalog basic search screen, change the drop down search option to Subject - Alphabetical. In the text box, enter the last name of the author, followed by a comma and then their first name. Ex: white, e.b.
At the next screen, you will see a list of subjects that start with the authors last name. Click a subject link that looks like it will provide reviews or criticism about your author or a specific book by the author. The best subjects to click on (in order of best fit) will be 1) the author name + "criticism and interpretation", 2) the author name + a specific title they authored, 3) the author name with no other details, and 4) the author name + biography* (*some author biographies will not give you the level of analysis you need and your instructor may specifically prohibit your use of author biographies).