Found this via "Altar Poem" in Google :

"Concrete poetry is the modern development of an old poetic device, in which the poem is printed in a particular design. "The Altar," an altar-shaped poem by the 17th-century English poet George HERBERT, is a famous example. In more recent times Guillaume APOLLINAIRE and E. E. CUMMINGS made typographical design an integral element of some of their poems, and such later poets as Ian Hamilton Finlay and Richard Kostelanetz experimented with the style."
Any help?
wow