Brian McCabe's fourth poetry collection is an inventive exploration of the world of numbers. With playfulness and poise, McCabe brings mathematics to life through a range of voices: a newsreader reports on the government's introduction of the new number through, a mafia boss invents Roman numerals, a fisherman gives his sardonic take on Pythagorus, and a monkey sheds light on the Golden Mean. Re-imaginings of the lives of mathematicians such as Riemann, Moebius and Napier sit alongside witty and thought-provoking interpretations of numbers: eleven is a pre-teen sulking in his room, while twin primes are portrayed as detained refugees under interrogation. Appealing to readers of poetry and number-lovers alike, "Zero" is a compelling and bravura performance from a poet at the height of his powers.