Imagined to be a room for a book collector, the Eclipse Library utilizes lighting phenomenon to create an ideal reading environment and book storage space. Three circular shapes were merged to create the interior form to correspond with the book storage, study, and entrance spaces. Also corresponding with these spaces are three rounded and tilted skylights that allow light to bounce in from above while also creating even exposure of light and a variety of intensities throughout the day. The curving interior space not only softens light from the skylights, but also serves to vary the thickness of the walls within the library. This results in portions of the wall that are very thin and allow translucent light to enter the space, as well as thicker areas that are more reflective. The combination of these elements creates a variety of lighting conditions and an overall atmosphere that is ideal for the program.