Coverletter&Follow-up letter

cover letter tells - who you are & why i'm interested in the co. Make yourself obvious!
good to include - address to a specific person / show knowledge of company&their possible needs / say that&when you will make contact at the end / YOU centered-how hiring you will benefit the company, show difference from other applicants
not good - just repeat info in resume / ME centered
Follow-up letters include - thanks, what the writer enjoyed or found interesting, a summary of writer's qualifications, an expression of interest in working for the company