When you are looking to write something on the lines of a thematic essay, then it could be on many different topics like the main idea of a story or the melody of a song. It can be a description or a narration. The themes are set and you cannot deviate from the topic when attempting thematic essay questions. When the students attempt such essay questions, they will solely be tested on whether they have fully understood a topic or if they know how to answer thematic essay questions. To be able to write effectively you not only have to read the topic carefully but also understand it completely.