Charles O. Hartman's eighth book of poems, Downfall of the Straight Line , vibrates with dazzling rhythms, masterful syntax, linguistic wit, and descriptions that are precise and surprising at the same time. From a dead backyard tree to a Greek city, from a lovers' bed to a lost lover, the poems display both intellectual depth and emotional complexity. We hear the voices of pianos, a donkey, and the supernova birthing the Crab Nebula; we watch as the poet scrutinizes the moon, and listen as he contemplates death, "a sudden change in plans for the afternoon." Hartman wastes no words: every stanza shows a nimble mind at work. Downfall of the Straight Line is a book to read with attention and delight. And then to read again.