Our life experiences are the result of our own perception of the outside world.

We perceive the world through the five senses: visual, auditory, kinesthetic, olfactory and gustatory (VAKOG) and process information according to the channel through which we received that information.

For example, if the information received comes through the visual field it will be encoded as images, if it is received as auditory, it will be codified in the form of sounds and words, and what we receive through feelings or kinesthetic is encoded by the brain as emotion. 

The process of storing and coding the information begins from our childhood, and as we grow and mature, we will develop a preference in the predominant use of a particular channel or system of representation.

Thus, some of us perceive the world predominantly through what we see and are visual, others are auditive, some kinesthetic and others rely on their olfactory or gustatory senses.

A good exercise is to start noticing carefully how people describe various events using different thinking patterns. It is equally useful to observe your own language, in which you can identify preferences for certain ways of accessing and expressing the concepts of the world.

Why is it important to identify someone's predominant system of representation?

To communicate more easily, by addressing them in "their language", to identify their talents, to understand what profession would be suitable for them. 

You show to a visual the world through color, images, words that are addressed to the sight, to an auditory by sounds, tonalities, things related to hearing, a kinesthetic will gently perceive fine or harsh textures, creamy, warm, cold, to someone who relies on their olfactory senses, you present the world by scents, and to someone that uses their gustatory senses, through taste and flavors. 

Some of us use in equal proportions one or two predominant representation systems. To enrich the experience of life, we can consciously develop all representation systems.