This entry develops a definition of literature as an identity technology by bringing together theories of identity formation as a process of identification and introjection, with thinking about reading as a materially grounded process in which readers encounter identities in the form of characters and narrators. The essay critically situates the terms “identity” and “technology” in the study of literature, media, and culture in order to argue that at the linguistic, symbolic, and material level, literature can be used as a means for inscribing and reinscribing identity at the individual and collective level. Drawing on ways of reading literature from autobiography studies and queer theory, this article is about how to read and think about literature as a mechanism through which identity is formed, negotiated and renegotiated, inscribed, and made public. The case studies utilized in this entry are the opening and closing essays of Eve Kosofsky Sedgwick’s important work of literary theory, Tendencies. Sedgwick’s theorization and enactment of reading as a generative, queer practice is brought together with a close reading of her reflections on her own identity and the variety of techniques she uses to situate to her reader to elucidate the utility of thinking literature as a technology used in the ongoing work of identity.