Certain Variables refers to the continuous cycle of change that affects our perception and experience of every building we encounter. Architectural structures appear to be relatively static, but we never experience them in the same way twice. Examples of Lambri's examination of these cycles of change are her photographs of a single skylight in Lautner's Sheats-Goldstein House. Taken over several months, these pictures poetically capture how her relationship to the space is in constant transformation.