Located in western Texas, Marfa is a small town known for its art community founded by minimalist artists Donald Judd, Dan Flavin and John Chamberlain. An abandoned site on the main street was chosen for an intervention - private library. Being on such a prominent location, the roof is accessible and becomes and extension of the public realm. The roof loop allows for informal programs above, while cultivating the interior below. As such the building is both landscape and architecture - a continuous datum line of changing intensities.