Typography is the art and techniques of arranging type, type design, and modifying type glyphs. Type glyphs are created and modified using a variety of illustration techniques. The arrangement of type involves the selection of typefaces, point size, line length, leading (line spacing), adjusting the spaces between groups of letters (tracking) and adjusting the space between pairs of letters (kerning). - Wikipedia - Typography
Typography has been playing an important role in different kind of mediums such as publishing, packaging, television. It's the way to present information to our audiences in text form.
A good typography can be pleasing to look at and easy to read. Now, I have collected 20 websites with beautiful typography, I believe this will be a good inspiration for all of us. Enjoy!