In 1965 Louis I. Kahn was commissioned by the Phillips Exeter Academy to design a library for the school. The Academy had been planning the new library for fifteen years but were consistently disappointed with the designs that the hired architects and committee were proposing. The Academy was very particular in knowing the kind of building they wanted: a brick exterior to match the Georgian buildings of the school and an interior with the ideal environment for study. Kahn’s sympathetic use of brick and his concerns for natural light met these specific principles that the Academy had in mind for the library, and thus the design fell in his hands.Kahn structured the library in three concentric square rings. The outer ring, which is built of load-bearing brick, includes all four exterior walls and the library carrel desks immediately inside them. The middle ring, which is built of reinforced concrete, holds the heavy book stacks. The inner ring is a dramatic atrium with enormous circular openings in its walls that reveal several floors of book stacks.