What Book!? is a lively anthology of modern mindful poetry, featuring 330 selections from 125 contributors. Also included are "mind-writing exercises" by Allen Ginsberg and a meditation by Thich Nhat Hanh.

Themes include love, nature, pacifism and violence, the avant-garde, family, silence, and song. The contents include original work and translations; performance art and conceptual art; lyrics, arias, and blues; picture poems and calligraphy; prose poetry and sonnets; haiku; meditations and sutras; journal entries; bucolics; jeremiads; postmodernism; and other artifacts from the intersection of meditation and art.

Its rich tapestry of voices includes Peter Coyote, Maxine Hong Kingston, Yoko Ono, Czeslaw Milosz, Robinson Jeffers, Yusef Komunyakaa, Lawson Inada, Allen Ginsberg, Jack Kerouac, Lawrence Ferlinghetti, Laurie Anderson, John Cage, Thomas Merton, Robert Aitken, Norman Fischer, Gary Snyder, Diane de Prima, Mary Oliver, Stephen Mitchell, bell hooks, Adam Yauch, brand-new discoveries, and children of all ages.