This is one service the library doesn't offer, but the Writing Center is a free resource on campus that has trained tutors that can help you with any assignment, including cover letters and resumes.
The Writing Center is located in ADMN 260. Call 580-559-5312 to make an appointment, or email your paper to writcen@ecok.edu. Walk ins are welcome!
The Career Center is another great campus resource for help with resumes and cover letters.