An updated version.

2. Typography is the art and technique of arranging type to
make language visible, for example the font
size, design of the font and the display of the font. The
arrangement of type involves the selection of
typefaces, point size, line length, leading, adjusting the
spaces between groups of letters and adjusting the
space between pairs of letters.

3. Typography is effective as the text would be more
appealing to the audience rather than having the text to
appear dull and boring. Another reason would be to
emphasis the atmosphere that may be projected.
Color is used for its emotional effect in conveying the
tone and nature of subject matter.

4. We use typography to express the creativity in the
types. Some examples of typography could be
the lettering in the movie poster ‘se7en’, where
the text looks like scratches and all the words
together do not make sense. Words like
‘wrath’.