Grennan's Still Life with Waterfall (2002) is filled with observations of the natural world, animal life, and human relationships. Some critics have identified a feeling of foreboding in many of these poems, as well as a search for continuity. Other critics have remarked on the subtle eroticism of some of the poems in this collection.

Modern Irish Poetry: An Anthology (1995), edited by Patrick Crotty, includes selections from Seamus Heaney, Eavan Boland, Derek Mahon, Michael Longley, Paul Muldoon, Medbh McGuckian, Paul Durcan, Nuala Ni Dhomhnaill (in translation from Irish), and others. Crotty argues that much twentieth century Irish writing can be interpreted as a quarrel with the dominating figure of W. B. Yeats.

Seamus Heaney's Opened Ground: Selected Poems, 1966—1996 (1998) is a large, representative selection of poems made by the poet himself. Heaney includes poems from his previous twelve books of poetry...