The Atatürk public library is situated on a sloping site with an excellent view of the Bosphorous. The facility consists of two sections: the main, hexagonal building with two upper public floors and a lower storage floor, and a four-story entrance, exhibition and administrative annex. The annex's upper two-story are for public use; the lower two are service areas. The top floor of the library and annex consists of the entrance hall, conference and exhibition areas and a large reading room; the level below is composed of the administrative and service areas, including catalogue and periodical units in addition to a large reading room with music and microfilm areas. The lowest level of the main building consists of an area of shelving space for 500,000 books.
The library is a compact building, whose design relies heavily on the use of 60° angles. Both the conference and exhibition areas, which flank the entrance hall, are flat-roofed hexagonal spaces: the main reading room comprises seven hexagonal units each surmounted by an hexahedral dome that is accented with skylights. The central dome is larger than the surrounding ones.
The site has been divided into two levels by a retaining wall. The main entrance is located on the top floor with access to it from the upper level. A central stairwell provides access to the two public floors. A separate stairwell in the entrance annex provides access to the two upper, public floors in addition to the two lower, service floors. Floor to ceiling windows have been used extensively in the public areas of the main building to take full advantage of the view. Two hexagonal exhaust towers flank the entrance annex
Ibrahim, Abdelbaki Mohamed (ed). 1998. Atatürk Library, Istanbul. In Alam al-Bina. Cairo: Center for Planning and Architectural Studies, 50-51/200.
Istanbul Atatürk Cultural Center was conceived for the Koç Foundation as a project incorporating library, museum and exhibition halls on the hexagonal grid of the site plan, but only the library was built in 1973-75. The acknowledged reference for the library is Eldem's unbuilt project for the Turkish Restaurant of the Istanbul Hilton Hotel. Architect Sedad Hakki Eldem. (Taken from English summary on page 8)