Calligram

a poem in which the calligraphy, the formation of the letters or the font selected, represents an aspect of the poem's subject, as in: thin, ancient, growth. A poem about fear might be written in shaky letters to represent trembling.
Found on http://www.standards.dfes.gov.uk/primary/publications/literacy/63285/nls_fw

Calligram

A calligram is a poem, phrase, or word in which the typeface, calligraphy or handwriting is arranged in a way that creates a visual image. The image created by the words expresses visually what the word, or words, say. In a poem, it manifests visually the theme presented by the text of the poem. Guillaume Apollinaire was a famous calligram writer ...
Found on http://en.wikipedia.org/wiki/Calligram

calligram

design using the letters of a word
Found on http://phrontistery.info/c.html
No exact match found