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The library consists primarily of two volumes interconnected by means of a 2-level glass gallery. The main volume is composed of three levels and the second volume of two levels. A large terrace occupies the third level of the lower volume. On the lower level of the library, the gallery serves as an access and distribution vestibule which leads directly to a central atrium covered by a skylight, which connects the three levels of the principal volume. Three materials dominate the exterior of the building: white cantera, a Mexican stone which covers the outside walls; the glass of the gallery and the main staircase and the steel painted white of the pergolas.