A cover letter sample internship should generally include a professional introduction, the internship position you're applying for, relevant education or experience, key skills, and your reason for being interested in the company. Students can also mention academic projects, certifications, volunteer activities, or achievements that relate to the role. A cover letter sample internship can be useful as a starting point, but your final letter should be customized to the specific opportunity. This makes the application more relevant and helps demonstrate genuine interest.