Reading lists for most taught courses are available via DUO. Open the link to your individual courses and reading lists (where they are available) should appear in the menu on the left hand side. The name of this link may vary, some lecturers may list them as Library Resources, others will call the Recommended Reading, Reading List, etc.
You will also find reading list materials available from the reading list link from the main page of the library catalogue: search by lecturer or course name. Lists contain a direct link to catalogue entries for books or a link to an electronic copy of specific articles or e-books.