When you annotate a chapter, you are adding explanatory notes and highlighting critical comments. This will create a quick reference when you review the information in the future. It cuts down the time you need to spend when you research a text. Without the proper annotation method, however, you may end up highlighting text that is not essential to your research, which may actually cost you more time than it saves you.
Read the chapter in question thoroughly. The purpose of annotation is to pick out the most essential parts of the chapter and cite them. Without a proper understanding of what information the chapter contains, you will not know what to annotate.
Create symbols to use when you annotate. For example, use stars to draw attention to a particular word, and use a bubble to draw attention to a certain phrase or sentence.
Place brackets on the page margins at a particularly long but important section of the chapter. In the remaining space of the margins, write a brief but explanatory note about the information contained in the bracketed section.