How to write a good essay on a theme of a book

Literary themes are implied through elements of the text, so taking notes as you read helps you identify and gather the book's clues. Underlining interesting passages, jotting down questions, marking moments when characters have to make important or difficult decisions and recording instances of symbolism and foreshadowing will deepen your interpretation of the book while also building a toolbox of material to draw from when you write your essay.

Often a theme can be gleaned from an evaluation of the circumstances surrounding repeated objects or symbols in the story. The central theme can also be identified by examining the characters' strengths, weaknesses, values, thoughts and actions. The theme is not explicitly stated, so your notes are crucial to identifying and evaluating the book's central theme.

When you have determined the theme of the book, you can formulate a thesis statement. The thesis statement conveys a particular point about the theme and how it is manifested in the book.

You should always analyze what you’ve written. The analysis shows how the theme is illustrated in the text and why the theme matters, both in story and in the real world. Your analysis can examine why characters make specific choices, how the book's setting impacts the plot, what conflicts exist in the text and how those conflicts are resolved.

Hope this helped :D
~Melis