A cover letter for a job application is a formal document that you send along with your resume when applying for a job. It introduces you to the employer, highlights your relevant skills and experiences, and explains why you are interested in and qualified for the position. The cover letter provides a personalized way to show your enthusiasm for the role and how you can contribute to the company. Typically, a cover letter includes:

1. A greeting to the hiring manager or employer.
2. An introduction explaining who you are and the job you’re applying for.
3. A summary of your key qualifications and how they match the job requirements.
4. Examples or brief stories illustrating your skills or achievements.
5. A closing statement expressing your interest and inviting further communication.

Its purpose is to complement your resume by giving context to your application and making a strong case for why you should be considered for the job.