It would have pleased Walt Whitman, that poet of urban motion, to envisionhis words coursing by electrified rail through a diverse, global city of 8 million souls.Since 1992, with the presentation of an excerpt from Walt Whitman's "Crossing Brooklyn Ferry," the Poetry in Motion program--co-sponsored by MTA Arts & Design and the Poetry Society of America--has brought more than 200 poems, in whole or in part, before the eyes of millions of subway and bus riders, offering a moment of timelessness in the busy day. The poems are by an eclectic mix of writers, from Sappho and Sylvia Plath to W. H. Auden, Rita Dove, Seamus Heaney, Nikki Giovanni, Patrick Phillips, and Aracelis Girmay. Each of the 100 poems gathered here has, in sixteen lines or less, the power to enliven the quotidian, provide nourishment for the soul, and enchant even the youngest among us.