Theme (narrative) facts for kids
In contemporary literary studies, a theme is how the central topic a text, book, or story is treated. Themes can be divided into two categories: a work's thematic concept is what readers "think the work is about" and its thematic statement being "what the work says about the subject".
The most common understanding of theme is an idea or point that is central to a story. It can be summed in a single word (e.g. love, death, betrayal). Some examples of themes of this type are conflict between the person and society; getting to adult age; humans in conflict with technology; nostalgia.
A theme may be shown by the actions, words said, or thoughts of a character in a novel. An example of this would be the theme loneliness in John Steinbeck's Of Mice and Men. Many of the characters are lonely. It may be different from the book's or author's view of the world.
Theme (narrative) Facts for Kids. Kiddle Encyclopedia.