In a well-made book, where designer, compositor and printer have all done their jobs, no matter how many thousands of lines and pages they must occupy, the letters are alive. They dance in their seats. Sometimes they rise and dance in the margins and aisles.
— Robert Bringhurst (author of The Elements of Typographic Style)
Also check out The Elements of Typographic Style applied to the Web. Someone has taken this book and explained how to do all these things with CSS and HTML – very cool!