A gloriously illustrated overview of angels across art, religion, and literatureIneffable, invisible, inscrutable—angels are enduring creatures across Judaism, Christianity, and Islam, and human experiences of the divine as mediated by spiritual emissaries are an aspect of almost every religious tradition. In popular culture, angels are often reduced to the most gauzy, sentimental, and saccharine of images: fat babies with wings and guardians with robes, halos, and harps. By contrast, in scripture whenever one of the heavenly choirs appears before a prophet or patriarch, they first declare...