<human>:  How to write an effective cover letter?
<bot>: Writing an effective cover letter is an important step to take when applying for a job. Start by researching the company and the position you are applying to, so that you can customize the letter to match their requirements and highlight relevant skills and experiences. Then, use a professional tone and include a clear introduction, main body, and conclusion. Salutation and closing should include the hiring manager's name if provided. Finally, make sure to proofread your cover letter before submitting it and consider having a friend review it for further accuracy.