Here are some essays and other writings that are not poetry:
• on W.S. Merwin’s The Vixen
• Why I Rhyme, an essay about how I started writing poems, free verse, form in poetry, and other things.
• Show Your Work, an essay on contemporary poetry criticism and reading poetry.
• An essay (with pictures!) about the poems of Marianne Moore
• Introduction to Steve Almond’s fabulous Bad Poetry