Literature reveals the values of a given culture or time period by reflecting the beliefs, attitudes, and social norms of society through its characters, plots, and themes. Authors often incorporate elements of their cultural context into their work, providing readers with insights into the values and perspectives of the people of that time and place. By studying literature from a specific culture or time period, readers can gain a deeper understanding of the values that were important to that society and how those values influenced the thoughts and actions of individuals within it.