You can search the catalogue by author, title, subject or keywords, such as 'visual perception', 'psychological testing' or 'human behaviour' to find the Library location number. You can browse the Library shelves or the online 'shelves' at these numbers:
Social psychology 302
Abnormal psychology 616.89
Dictionaries, encyclopaedias or handbooks can give you a basic introduction to a particular topic - dictionaries provide definitions and explanations; encyclopaedias and handbooks provide summaries or essays on particular topics.