<em>An introduction has to capture the reader's interest</em> so that he continues reading the piece. It should be written in an easy, understandable style and it should be kept relatively short.
All strong introductions have three components: a hook, a transition sentence and a theses statement.
The hook is the place where you grab the reader's attention. It may be a controversial question, a bold fact or just a hypothesis. The transition tells how the hook relates to the topic of the text and then the introduction ends with a theses statement.
