Presented as a paired diptych, Mark Hagen's To Be Titled (Additive Painting #8) and To Be Titled (Additive Painting #9) from 2010 exemplify the artist's rigorous investigation into materiality, process, and the physical accumulation of painted surface. Each work, measuring 61 1/4 by 43 1/4 inches, is executed in acrylic on burlap mounted to board, and the coarse weave of the burlap asserts itself as an active compositional element rather than a neutral support. The texture breathes through successive layers of paint, creating a surface that registers time and labor in a way that flat, primed canvas never could. Hagen's decision to work in series, and to leave these paintings provisionally titled, reflects a deliberate resistance to fixed meaning, inviting the viewer to engage with the work on purely formal and sensory terms. The "Additive Painting" designation speaks directly to Hagen's methodology, in which meaning and surface are built incrementally, each layer informing and complicating those beneath it. This approach positions the works in conversation with the Minimalist and post-Minimalist traditions while simultaneously pushing against their austerity, introducing handmade irregularity and organic material into a conceptually structured framework. The pairing of the two works amplifies this tension, as subtle differences between the panels reward close looking and raise quiet questions about repetition, variation, and seriality. Signed by the artist and presented in artist-designed frames, these works carry a strong sense of authorial intention at every level of their construction. Collectors acquiring both panels gain not only two substantial and visually compelling objects but also a complete conceptual unit, a rare opportunity to hold the full relational logic of Hagen's process within a single collection.