The Ibadi Muslims, a little-known minority community, have lived in North Africa for over a thousand years. Combining an analysis of Arabic manuscripts with digital tools used in network analysis, Paul M. Love Jr. takes readers on a journey across the Maghrib and beyond as he traces the paths of a group of manuscripts and the Ibadi scholars who used them. Ibadi scholars of the Middle Period (11th-16th c.) wrote a series of collective biographies (prosopographies), which together constructed a cumulative tradition that connected Ibadi Muslims from across time and space, bringing them together into a "written network." From the Mzab valley in Algeria to the island of Jerba in Tunisia, from the Jebel Nafusa in Libya to the bustling metropolis of early-modern Cairo, this book shows how people and books worked in tandem to construct and maintain an Ibadi Muslim tradition in the Maghrib.