Use these resources to research Concrete Poems!
http://en.wikipedia.org/wiki/Concrete_poetry
http://dictionary.reference.com/browse/concrete+poem
http://www.poetry4kids.com/blog/news/how-to-write-a-concrete-poem/
http://www.wikihow.com/Write-a-Concrete-Poem
http://examples.yourdictionary.com/examples-of-concrete-poems.html
http://www.poetrysoup.com/poems/concrete
http://dictionary.reference.com/browse/concrete+poem
http://www.poetry4kids.com/blog/news/how-to-write-a-concrete-poem/
http://www.wikihow.com/Write-a-Concrete-Poem
http://examples.yourdictionary.com/examples-of-concrete-poems.html
http://www.poetrysoup.com/poems/concrete