As a rule, every letter, unless insulting in its character, requires an answer. To neglect to answer a letter, when written to, is as uncivil as to neglect to reply when spoken to.

In the reply, acknowledge first the receipt of the letter, mentioning its date, and afterwards consider all the points requiring attention.

If the letter is to be very brief, commence sufficiently far from the top of the page to give a nearly equal amount of blank paper at the bottom of the sheet when the letter is ended.

Should the matter in the letter continue beyond the first page, it is well to commence a little above the middle of the sheet, extending as far as necessary on the other pages.

It is thought impolite to use a half sheet of paper in formal letters. As a matter of economy and convenience for business purposes, however, it is customary to have the card of the business man printed at the top of the sheet, and a single leaf is used.

In writing a letter, the answer to which is of more benefit to yourself than the person to whom you write, enclose a postage stamp for the reply.

Letters should be as free from erasures, interlineations, blots and postscripts as possible. It is decidedly better to copy the letter than to have these appear.

A letter of introduction or recommendation, should never be sealed, as the bearer to whom it is given ought to know the contents.