The Poetry Foundation's website characterizes Ryan's poems as follows: "Like Emily Dickinson and Marianne Moore before her, Ryan delights in quirks of logic and language and teases poetry out of the most unlikely places. She regards the 'rehabilitation of clichés,' for instance, as part of the poet’s mission. Characterized by subtle, surprising rhymes and nimble rhythms, her compact poems are charged with sly wit and off-beat wisdom." J. D. McClatchy included Ryan in his 2003 anthology of contemporary American poetry. He wrote in his introduction, "Her poems are compact, exhilarating, strange affairs, like Satie miniatures or Cornell boxes. … There are poets who start with lived life, still damp with sorrow or uncertainty, and lead it towards ideas about life. And there are poets who begin with ideas and draw life in towards their speculations. Marianne Moore and May Swenson were this latter sort of artist; so is Kay Ryan."