Again don't explain if emotions or details are already shown through dialogue or action. Should be unobtrusive. Long passages of internal monologue often become ways of telling the reader information instead of showing. One way to do this is to get rid of speaker attributions. Because he drove her crazy .
Interior monologue helps set point of view.
It is not the same thing as description, though the two can blend together. You can use italics to show a character's thought, but use sparingly. Too many italics are irritating, but they can be a good way to set off a more important thought in the middle of a monologue. This page maintained by Karen Fox . All rights reserved.