This project emphasizes a complex, holistic, and additive view of content knowledge in the Discipline of Writing, advocating for balanced and affirming scholarship and pedagogy rather than a competitive approach that leads to an epistemology of erasure. As a composite project, the introduction contextualizes three articles linked by their articulation of holistically and additively thinking for students and scholars in the discipline of writing, preparing the reader to see the rhetorical steps that I attempt to take in each article along these lines. Article 1, “The Collaborative Work of Composition,” uses Marxian language of production to highlight the complexities of collaborative writing in a social microcosm drawing focus to the difficulties some students have collaborating, particularly those of linguistic and cultural minority groups, because they or their collaborators struggle to adopt an additive valuing system to position themselves and one another as part of a team with varying strengths. In Article 2, “An Integrative Translingual Pedagogy of Affirmation,” I build on this valuing of writers by advocating for an affirming pedagogy that allows teachers to help students see the complexity and value of their shared languages and their individual (L)anguage as well as the identity connected to these. Article 3, “Familia Académica: Translingual History and the Epistemology of Erasure,” draws on a deep and overlooked history that provides a more complex holistic lens for the current socio-politics of the discipline of Writing’s interaction with the translingual approach, re-orienting to a more additive blend of the extreme perspectives that key scholars have taken between second language writing and translingual writing. Finally, the last section of the dissertation acts as a metaconstruction of the discipline of Writing, pointing to moments within the previous three articles that indicate a sustained effort to complicate binaries and then provide an alternate symbiosis of scholarly perspectives for disciplinary discourse and identity in Writing. Most importantly though, the final section of the dissertation synthesizes the partial approaches introduced in the previous three articles which inform my understanding of disciplinarity. Further, this final section attempts to find equity in the variety of partial approaches developed in the previous articles and which I have since matured into what I call the 8 Aspects of Writing. The 8 aspects and their components move beyond individual issues presented in each article and synthesize a more holistic, additive, and systematic model of defining the content knowledge for the discipline of Writing.