Neat project (and now book) from Ishac Bertran: 55 poems written entirely from code. From the abstract:

Code is the language used to communicate with computers. It has its own rules (syntax) and meaning (semantics). Like literature writers or poets, coders also have their own style that include - strategies for optimizing the code being read by a computer, and facilitating its understanding through visual organization and comments for other coders.

Be sure to read Bertran’s interview with The Creators Project.