[b.] An inside address and a greeting are required in business letters. Personal letters contain the greeting, but may omit the inside address, or may supply it at the end of the letter.

Greetings used in business letters are:

Greetings used in personal letters are:

"My dear Miss Brown" is more ceremonious than "Dear Miss Brown". As a rule, the more familiar the letter, the shorter the greeting.

A colon follows the greeting if the letter is formal or long; a comma, if the letter is familiar or in the nature of a note.

Both inside address and greeting begin at the left-hand margin. The body of the letter begins on the line below the greeting, and is indented as much as an ordinary paragraph (about an inch).

[c.] The body of a letter should be written in correct style.