“Informed by the best of contemporary theology and biblical studies, John Markey’s Who Is God? is wonderfully concise and surprisingly accessible. Carefully chosen poetry and literature serve as an entryway and invite the reader into a vision of a God of infinite loving compassion whose ‘heart’ is tuned to the cries of the poor. Remarkably thorough, Markey’s narrative deftly surveys the major historical developments and key figures who have honed and plumbed this vision through the centuries and ends by revealing the contemporary relevance of such an understanding of God.”