The commission involved covering the central space of the recently completed library at Monterrey Tec. The goal was to protect the space from rain, sun, and uncontrolled winds so that it could be used year-round. The trees on the lush campus inspired the veil simulating leaves falling on the surface via a pattern screened on the ETFE. The falling leaves evoke fall when the semester begins, and students are positive and excited by a new beginning. The ultralightweight structure creates new patterns as the sun moves across the surface and provides a sense of time passing as one studies.