The preceding text covers the basics of typography, which you should study and know in order to make the text in your assignment flow better.
Now, you have a greater understanding of typography: what it is; what it's made of; what are its characteristics; what the brain search for and process in a text; the lengths it will go to understand it; and the alignments, spacing, and other issues that revolve around this beautiful subject.
The most important rule to remember is that text is used to express something. It may be an informative reading, may be the expression of a feeling, such as a poem, or it can be something to make you feel something specifically.
Every text has a feeling, every text has an inner tone of voice that can be expressed visually through typography. Usually it's the text itself that dictates its feeling – and help you decide which and how to express it.
All the preceding rules, properties, and knowledge are means for you to express it and there's a large range of properties on the Web for you to use them. There is almost as much variety available in print with properties for leading, kerning, tracking, and typographical hierarchy all built in your browsers.
We'll start to explore them in the upcoming chapters.