What's the meaning of art as a program studied or a course

To make an etching the artist first coats the entire printing plate with an acid-resistant substance called a made from beeswax, asphalt, and other material. the artist then draws on the coated plate with an etching needle exposing the metal. next the plate is dipped in the plate is removed, the waxy coating removed, and the plate is cleaned, inked and printed.

What does it mean to have a bias (for example your bias of bts)?

Why did emerson most likely include the quotation from john brown speech