"So what lasts?" asks the speaker in the poem "El Anatsui." This is the central question of Susan Jackson's new collection In the River of Songs. Jackson is a poet dedicated to exploring the mysteries of what it means to be fully human in a world where love, loss, pain, and joy are irrevocably nested together. These poems seem to answer that whatever does last is not easily defined; maybe only the intangible qualities of heart, perseverance, generosity of spirit, and moments when the poet is suddenly anchored in appreciation for "the ever-flowing fullness of the world." Readers will be touched by the intimate beauty of the poems in this new volume.