When attaching a cover letter to your resume, it shows that you take the job offer seriously. Your cover letter should include: Why you applied for the job Why you believe you are the right candidate What you know about the company Additionally, try to find out more about the person interviewing you. This helps you tailor your cover letter to grab their attention.Also, keep your resume concise. For freshers, a one-page resume is ideal. Avoid making it 3 to 4 pages long. Hope this helps!