Typography is the technique to design the alphabets to make it interesting. Good typography can produce the excellent design and bring the feeling according to the typography. Typography refers to the designing the typeface, font size, leading, kerning, and tracking.
Typography not only can design in worlds, they can also used in combination of alphabets to become a objects for example the portraits.
The combination of different typeface and font size to produce a people face. This is an interesting design which normally people drawing the people just using the outline follow the pattern of people.
Good technique skill are needed to produce this type of design which is more difficult than normal drawing people portrait.
Besides that, not only can using black and white to produce this type of design, designer also can use color typeface to produce the portrait. This make the portrait more colorful and intersting.