The introduction sketches the history of literary internationalism in the communist East. Throughout much of Central Eurasia, South Asia, and the Middle East, modern socialist and anticolonial revolutionary movements have drawn on a shared non-European political, intellectual, and artistic culture whose canonical forms and models were born in Persian. For this reason, throughout the twentieth century, the fate of Persianate culture was deeply intertwined with the fate of communist internationalism in Eurasia. This introduction establishes the basis for the book’s basic conceptual categories: Persianate, Eastern, transnational, multinational, international, and world poetics. The Persianate functions in this book as a repertory of cultural forms rather than a civilizational unity. The distinction between transnational and international is also crucial to the book that narrates the process by which a transnational cosmopolitanism of ordinary people was replaced by an international friendship between nations performed by an elite corps of literary representatives and the practical commons of Persianate forms turned into the reified political unity of the revolutionary East. For this process, the introduction provides a periodization based on generations of Eastern internationalist writers, each illustrated by several short biographical examples.