Enter Kroch from the Main Level of Olin Library. From the entrance to Olin Library, continue down the "alley" until you reach Kroch. The Severinghaus Reading Room (Asia Collections) is the first door on your left. Go to the end of the corridor and turn left to reach Level 1 stacks (Oversize "+" and "++" and microfilm) Level B1 (regular size items) is one flight down.