You can use particular words as clues for what is coming next and for the organization of the text. These words are called “pivotal words” or “signpost words”.
Furthermore means more information is coming.
In other words means that the author is saying the same thing in a different way.
However and On the other hand mean something different or a change is being presented.
Above all means that something is being emphasized.
Second, Next, Finally help you to put information in order.
Previously, Meanwhile, Ultimately help you to understand the timing.
In conclusion means that there is a summary.
Go here - http://www.dartmouth.edu/~acskills/success/reading.html for a list of the pivotal words and how they can help your reading. Download the page entitled “Pivotal Words”.