New Selected Poems is a book of singular abundance and formal verve, featuring poems of rare vision and dramatic power by a consummate and resilient artist. Demonstrating the wide range of Derek Mahon''s verse, from the early lyricism to a more expansive middle period (''New York Time'', ''Decadence'') and the flowering of his late style, it includes recent, uncollected work and culminates in the generous, far-reaching reverie ''Dreams of a Summer Night''.