It's best to submit all essays, even those listed as optional or recommended.
Depending on the university, your essay will need to be no more than 650 to 750 words max. The introduction should include a hook to grab the reader's interest, and you should use specific details in the body of your essay to illustrate your main ideas. Wrap up with a strong conclusion.
The Common Application Essay Prompts
Over 1000 public and private colleges and universities throughout the United States and internationally accept the Common Application.
This guide from Common App lists the essay prompts and how to approach each one.
Apply Texas Essay Prompts
All public colleges and universities in Texas require the Apply Texas application. Many of the private ones in Texas accept it, too.
You can access the essay prompts here.
Check each university's website for the latest information on which essays are required or recommended
Coalition for College Essay Prompts
Over 150 public and private colleges and universities in the United States accept the Coalition for College application.
You can access the essay prompts here.
Additional Essay Requirements:
Often universities will require additional writing responses, sometimes called writing supplements or short essays. Make sure you're checking each college's application requirements, including major-specific requirements, so you know what writings are required.