In an informative essay, the main point is usually presented in the form of a thesis statement. A thesis statement, typically no more than a single sentence, directs readers’ attention to what you want them to learn about a subject. Consider how the following thesis statements about voter turnout among younger Americans direct readers’ attention in a particular way:

The high turnout among younger voters in the last presidential election underscores the growing importance of young Americans on the political scene.

The growing political commitment of voters under the age of twenty-five has led to higher voter turnout, which, in turn, has reduced the historic imbalance in the relative political influence of younger and older Americans.

Regardless of the causes, the overall pattern of increasing voter turnout among younger voters should be cause for celebration among voters — young and old alike.

Although each of these thesis statements would provide a sound foundation for an informative essay, the essays would have little in common. By focusing on distinctly different aspects of the subject, they require the writer to provide different supporting points and evidence.

Your thesis statement will be shaped by what you’ve learned about your subject; your purpose; your readers’ purposes, needs, and interests; your readers’ knowledge and backgrounds; and the requirements and limitations of your writing project.