The following quotation is stated by Bal and Bryson on page 186.

“It must be recognized that possession of codes of viewing is a process, not a given, and that members of groups acquire their familiarity with codes of viewing, and their ability to operate those codes, to varying degrees.  Access to these codes is uneven: codes have to be learned and their distribution varies (and changes) within a group.”

In this current age in time, many people may say that they are not art people.  He or she may say they do not understand art.  Art, in a way, is very similar to a mathematical concept.  Even if you are a math person, not all mathematical principals are intended for equal understanding.  Comprehending and understanding math is a process just like considering a piece of artwork is.  It is imperative that an individual takes the aspects of the piece of art one step at a time like one would do with a new math problem or concept.  Gaining access to these “codes” for understanding is a task that varies in degree of difficulty.  Furthermore, attainability of these codes may depend on who the person is as an individual in addition to his or her openness to “the problem ahead.”