and the Main Reading Room; its central location makes it a de facto foyer for the reading room. The room measures . Similar to the Main Reading Room, it has a 52-foot-high ceiling. Four chandeliers, of identical design to those in the Main Reading Room, hang from the ceiling. The ceiling of the Public Catalog Room also contains a section of James Wall Finn's 1911 mural. The building's light courts abut the room's northern and southern walls. The first renovation of the Catalog Room may have taken place in 1935, when its ceiling was repainted. Further modifications occurred in 1952 when metal cabinets replaced the original oak cabinets as a result of the catalog room's quick expansion, with 150,000 new catalog cards being added each year. The Catalog Room was restored in 1983 and renamed for Bill Blass in 1994. Computers were added following the 1980s expansion. There is an information desk on the north side on the room, to the right when entering from the rotunda. Originally, visitors would receive card slips with numbers on them and then be directed to one of the Main Reading Room's halves based on their card number. The Public Catalog Room also contains waist-high oak desks on the south side. These desks contain computers that allow New York Public Library cardholders to search the library's catalog. Salomon Room The Edna Barnes Salomon Room, located east of the McGraw Rotunda in Room 316, is usually utilized as an event space. It has wooden tables, glass exhibit cases, and a coved ceiling with a skylight. The space was originally intended as a picture gallery, and oil paintings still hang on the walls. In 2009, it was converted to a "wireless Internet reading and study room" to provide overflow capacity for internet users who cannot fit in the Main Reading Room. Non-public stacks The stacks within the Schwarzman Building are a main feature of the building. Housed beneath the Rose Main Reading Room are a series of stacks, which hold an estimated 2.5 million books. At the time of the branch's opening, the stacks could hold 2.7 million books on of shelves. There were another 500,000 or 800,000 books stored in various reading rooms. The central stacks, as they are called, have a capacity of 3.5 million books across 88 miles of bookshelves, spanning seven stories. The stacks contain marble floors, as well as iron shelves