"Live in the layers," Stanley Kunitz insisted in one of his best-loved poems. This collection of poetry by Susan Horton does just that, layering poems of water-bug, surface-skimming playfulness and high-wire word play with poems that dive deep and are, at bedrock, meditations on loss survived and humor revived. Add to this the wit of Billy Collins, the eye of a nature poet, and a smidgen of the snarkiness of Philip Larkin lurking at the edges, and you have Mapless in Dream City.