This collection of essays undertakes to show how women in non-elite or marginalized positions, a doubly invisible but numerous component of the early modern population, built and used a variety of networks to solve problems, to fend for themselves and their associates, and to build solidarities with other women. Our chronology stretches from the sixteenth through the eighteenth centuries. While we cannot claim to explore the entire globe, we have gathered case studies sited in a broad reach of lands extending from the eastern Mediterranean across Europe and the Maghreb and on to colonial Spanish America. The collection's geography includes Turkey, Egypt, Algeria, Italy, England, Spain, Mexico, and Guatemala. We meet most of our women in urban settings, cities and towns of varying size that often belonged to imperial domains and brought together a cosmopolitan population. Around the Mediterranean, Cairo, Istanbul, Rome, and Venice included ethnic and religious minorities, and in the Americas, Mexico City, and Santiago de Guatemala gathered peoples of varied Indigenous, Black, and European descent. In these early modern cities, many residents were people on the move, and the business of making a new life required networking not only among familiar kinfolk and neighbors but also with strangers. Our protagonists include travelers and migrants: one party from England visited the Ottoman Empire; two small groups migrated from the Levant to Italy; a fictional prostitute from Cordoba went to Rome; and one poor woman, in colonial Guatemala, left the countryside for the city.