A logo is a picture or drawing that is used by a person, group,
or company to mark who they are.
A company or group can use a 'logo' on the things that they
make, like on the things they sell, on letters, and in advertisements.
When another person sees the logo picture, that person knows
that the thing they see the logo on came from that company.
Logos can have letters and words in them. Many logos have the
name of the company or group in them. Most logos are very simple
drawings with only a small number of colors. Some logos are
only black and white.