Elements of a Letters Letter Formats Effective Letter Writing Unit 1 Resumes Unit 2 Letters of Application Unit 3 Cover Letters Unit 4 Letters Dealing with Employment Unit 5 Sales Letters Unit 6 Faxed Letters Unit 7 Follow- up letters Unit 8 Fundraising Letters Unit 9 Letters Dealing with Orders Unit 10 Memos Unit 11 Letters of Instructions Unit 12 Letters of Introduction Unit 13 Complaints Unit 14 Letters of Adjustment Unit 15 Letters That Serve as Contracts Unit 16 Requests and Inquiries Unit 17 Query Letters Unit 18 Letters to the Editor Unit 19 References and Recommendations Unit 20 Reports and Proposals Unit 21 Letters of Appreciation Unit 22 Letters of Welcome Unit 23 Letters about Credit Unit 24 Collection Letters Unit 25 E-mail