This book offers the first English translation and comprehensive analysis (inclusive of introductory study and endnotes to the translation) of the longest and most complex Italian Renaissance utopia, Ludovico Agostini's Imaginary Republic. It not only reveals the significance of a text that has been mostly forgotten; it also shows how an investigation of Imaginary Republic uncovers neglected and surprising facets of Renaissance utopianism. The current scholarly image of Renaissance utopianism is based, predominantly, on English texts. Other European utopian traditions are considered only tangentially and do not substantially inform the overall picture of the nature of Renaissance utopias. This book's study of Imaginary Republic, within the context of Italian sixteenth- and seventeenth-century utopias, contributes to filling this gap in the critical literature by expanding the current understanding of Renaissance utopianism.