Text can be aligned with one or both edges (or insets) of a text frame. Text is said to be justified when it is aligned with both edges. You can choose to justify all text in a paragraph excluding the last line (Justify Left or Justify Right), or you can justify text in a paragraph including the last line (Justify All). When you have only a few characters on the last line, you may want to use a special end-of-story character and create a flush space.