Envelope : The first thing that reaches the recevier is the envelope. Therefore one should be precise in the matter of selecting envelope.
(i) With the business letter several papers are enclosed. In such cases using envelope of small size not proper.
(ii) Generally a rectangle and vertical envelope is used for business letters. (iii) The paper of envelope should match with the higher quality paper.
(iv) The shade of the paper used for letter writing should match with the envelope. That means if the paper is white, the envelope should be white as well.
(v) If paper of pastel shade is used for letter, the envelope should match it. (vi) For business letters, envelope with vertical access on right is used.