Heaven on Earth: 101 Happy Poems

Edited by Wendy Cope, one of my favorite poets, this anthology collects poems from the very old to the quite new, with poems by Geoffrey Chaucer and Andrew Marvell, Sylvia Plath, John Betjeman, Fleur Adcock, Tachibana Akemi, Stevie Smith, and Seamus Heaney. It's delightful.