How do letters differ from other forms of communication?

The third difference between spoken and written communication is that written communication is generally archived and recorded for later retrieval, while spoken communication is generally not recorded. When we talk with friends, we do not tend to take notes or tape record our conversations.

in the door-way, with his head in the room and with a lantern in hand with the most slight ray of light shining from it; so small and opening it so slowly to not disturb the old mans sleep.

i have watched the play of this story last friday.