Here's why:
* Brevity: Essay titles should be concise and to the point. A complete sentence can be unnecessarily long and wordy.
* Impact: A well-chosen phrase or short sentence fragment can be more impactful and memorable.
* Clarity: A complete sentence can be confusing or ambiguous, especially if it's complex.
* Formatting: Most academic style guides recommend using a title that is not a complete sentence.
Instead of using a complete sentence, consider:
* A phrase: "The Impact of Technology on Education"
* A question: "Is Social Media a Blessing or a Curse?"
* A single word or short phrase: "Resilience," "The Power of Storytelling"
Ultimately, the best title will depend on the specific content of your essay. However, it's usually a good idea to avoid using a complete sentence.