Another group of signals that urge the reader is called summary signals. These include such words as thus, therefore, consequently , and accordingly . This is what the author has been leading up to. In textbooks, summary signals introduce important ideas and concepts. They are used in statements that summarize the writer's presentation.
Signs stand out in the text.
Examples of typical signs appear below. The first level signs indicate ideas which might correspond to the Roman numerals in the traditional outline format. The second level signs indicate ideas which might correspond to the capital letters in an outline and the third level signs indicate ideas which might correspond to Arabic numerals in an outline. I, II, III, etc. A, B, C, D, etc.