Final answer:
A concrete poem is one in which the words are arranged to create a visual representation of the subject, making it distinct from other forms of poetry through its use of shape and arrangement.
Step-by-step explanation:
The type of poem in which the words are arranged to create a visual representation of the subject is known as a concrete poem. Unlike thematic, lyrical, or artistic poems, concrete poems focus on the physical shape of the text to convey its meaning. This practice aligns with the idea that a concrete image can make a scene come to life, as opposed to abstract words that might only tell the reader about an experience rather than showing it. Guillaume Apollinaire is famous for his calligrams, which are a type of concrete poem.
Concrete poetry engages the reader visually as well as textually, making it a unique event in language. It requires the poet to consider the visual aspect of word arrangement on the page, on top of the traditional elements of poetry such as tone, rhythm, and sound. The impact of concrete poetry is such that it creates an immersive experience that can encapsulate the reader's entire being and body, much like traditional poetry does through rhythm and sound.