FIRST FLOOR
| Entrances | [17] |
| Elevators | [19] |
| Exhibition Room | [19] |
| Current Periodicals Room | [19] |
| Business Offices | [21] |
| Technology Division | [21] |
| Patents Room | [22] |
| The Library for the Blind | [22] |
SECOND FLOOR
| Oriental Division | [23] |
| Jewish Division | [23] |
| Slavonic Division | [23] |
| Science Division | [25] |
| Economics Division | [25] |
| Business Offices | [25] |
THIRD FLOOR
| Public Catalogue Room | [27] |
| Information Desk | [31] |
| Application for Books | [31] |
| The Main Reading Room | [31] |
| The Library's Books | [33] |
| Use of Books | [39] |
| Stack | [39] |
| Genealogy Room | [39] |
| American History Division | [39] |
| Reserve Books | [41] |
| Prints Room | [43] |
| Art and Architecture | [43] |
| Map Room | [45] |
| Stuart Gallery | [45] |
| General Gallery | [45] |
| Prints Gallery | [45] |
| Manuscript Division | [46] |
| Music Division | [47] |
BASEMENT
| Newspaper Room | [47] |
| Central Circulation Branch | [49] |
| Children's Room | [51] |
| Library School | [51] |
| Public Telephones | [53] |
| Business Offices | [53] |
| Travelling Libraries Office | [53] |