What is the main purpose of a thesis statement in an essay?

The main purpose of a thesis statement in an essay is to articulate the central argument or point that the writer intends to convey. It serves as a roadmap for the reader, outlining what to expect in the essay and guiding the subsequent discussion or analysis. A strong thesis statement clearly presents the writer's stance and highlights the specific aspects of the topic that will be addressed. This focus helps to ensure that the essay remains coherent and that each part contributes to supporting the thesis.

In contrast, offering background information does not fulfill the role of a thesis statement, as it merely sets the stage without indicating the main argument. Summarizing the conclusion does not aid in presenting the argument; instead, it reflects on what has already been discussed. Listing references pertains to the sourcing of information rather than asserting the essay's main claim. Thus, the thesis statement's primary function is to establish the main argument around which the entire essay revolves.