From Encyclopedia Jr, free information reference for Kids
Imagery is any literary reference to the five senses (sight, touch, smell, hearing, and taste). Essentially, imagery is any words that create a picture in your head. Such images can be created by using figures of speech such as similes, metaphors, personification, and assonance.
Edgar Allan Poe, Ezra Pound, and William Wordsworth were masters of imagery. The Fall of the House of Usher by Poe, for example, used such pictures of a "black and lurid tarn that lay in unruffled luster by the dwelling" to create images in the mind of trepidation and gloom.
Imagery is also the term used to refer to the creation (or re-creation) of any experience in the mind – auditory, visual, tactile, olfactory, gustatory, kinesthetic, organic. It is a cognitive process employed by most, if not all, humans. When thinking about a previous or upcoming event, people commonly use imagery. For example, one may ask, "What color are your living room walls?" The answer to this question is commonly retrieved by using imagery (i.e., by a person mentally "seeing" one's living room walls).
Remembered imagery is mostly based on what an individual has already experienced. People have a clear image of those "experienced" things, which they can recall at will.
Imaginary imagery does not seem to have a corresponding equivalent in the real world -- often it is a strange combination of remembered images, or of remembered images mixed with confabulation.
Research areas concerned with imagery include cognitive neuroscience, and sport/exercise/dance psychology. Research in psychology has shown that imagery does not have a unified biological basis in the brain, but is rather considered as a collection of different functions situated in various parts of the cerebral hemispheres.[citation needed] Imagery can also be based on what has not been experienced. In this case, it is commonly used to 'fill in the gaps' in one's mind. A common example of this is a child having nightmares of a monster when the room is dark. They can 'imagine' a monster coming out of nowhere to attack them. Imagery is often used by poets and authors to help the reader imagine what is happening and helps the reader to become absorbed in the article/book and allows the reader to see what is in the author's mind.
Imagery provides to be a very effective literary device in any piece of literature. As many English teachers will say: "Show, don't tell!"
Sensory words are an important part in using imagery.