There are four different definitions of perspective according to the Webster's New World Dictionary, yet the latter three are merely the application of the first, which is the one I've begun this post with, in various fields or situations.
This drawing form rourkevisualart.com is the type of thing we think of as perspective in art.
Depth on a two dimensional surface. Sometimes the effect is such that we're not quiet sure what the "trick" is.
Is this giant coke bottle from rense.com a photographic trick or a really good chalk drawing? Yet there are other pictures that present a perspective that you know are impossible. Such as Echner's Waterfall
Perspective also describes how we see events in life, and they often fall into one of the above categories: seemingly three dimensional but obviously not real, obviously not really but unsure where the error is, or obviously not real yet seemingly true.
Perspectives can have a lasting affect on the thing or person we are viewing. So before making a decision based only on your perspective, you might want to evaluate your perspective to make sure it is accurate.
