Lorenzo Vinciguerra understands Spinoza’s non-dualist ontology as a semiotic process of signs interpreted in a pragmatist sense. He provides a genuine understanding of Spinoza’s monism as neither materialistic nor idealistic. This first translation of Vinciguerra’s work into English gives readers the opportunity to better understand the connection between Spinoza’s Ethics and Theologico-Political Treatise from a common perspective on the imagination. This provides the possibility to rethink imagination in a new way: as a cosmic and immanent semiosis including all bodies in nature as modes of a unique substance.