When you are a designer, you gotta think about a lot of things: contrast, balance, alignments, imagery, and typography. For me, design itself is all about typography. Not only typefaces, but how you use it and what you may create playing with them.
Typography is the art and techniques of type design, modifying type glyphs, and arranging type. Type glyphs (characters) are created and modified using a variety of illustration techniques. The arrangement of type is the selection of typefaces, point size, line length, leading (line spacing) and letter spacing.
In this post I will list some amazing examples of experimentation in typography. Custom types, redesigned types, handwriting, and many more styles. You can find these images at Flickr.com. There, you will find lots of very good Typography groups constantly updated.