Shape poetry can be quite a bitch of a poetic form. The content in a shape poem is quite easy to manage; it is the form and, in the most literal sense, its “shape” that makes it so, so difficult.
The concept behind shape poetry is to write a poem, while positioning and juxtaposing the lines such as to form a shape. To the traditional shape poet, any word-processing software may suffice: just whittle down your words and sculpt and mold them using spaces and whatnot. To anyone tech-savvy enough to use photo-editing software, shape poetry is all the simpler: All you have to do is play around with the Text Tool, and if you like, paste an image of the shape you’ll be doing in a separate layer.
I understand the text of my shape poem below isn’t readable due to the small size. The original-sized image thereof can be located here.