Interpretation is the third characteristic of human perception. That is, human
perception possesses meanings. Our structured and stable perceptions are not
isolated from others. When we organize a library into an environment with an internal
and external structure, we attach a set of meanings to it. For example, a library is a
place for us to study and collect information but not a place to have a nice nap or
dinner with our friends. Moreover, we usually use-words such as place, book, study,
and catalog-to define and name the categories of our perception of a library in order
to produce meanings. It is important to note that although we treat the three stages
of perception separately, in reality they are an integrated process with no clear
boundary between them.