Reference & Research Drop-In Help

Reference or research drop-in help from the Libraries' subject experts.

Please also see related drop-in services in Butler and Lehman Libraries:

For information about services at all other Columbia University Libraries locations, please see the building hours calendars.

December 2034
SundayMondayTuesdayWednesdayThursdayFridaySaturday
26
2034-11-26
TBD
27
2034-11-27
TBD
28
2034-11-28
TBD
29
2034-11-29
TBD
30
2034-11-30
TBD
1
2034-12-01
TBD
2
2034-12-02
TBD
3
2034-12-03
TBD
4
2034-12-04
TBD
5
2034-12-05
TBD
6
2034-12-06
TBD
7
2034-12-07
TBD
8
2034-12-08
TBD
9
2034-12-09
TBD
10
2034-12-10
TBD
11
2034-12-11
TBD
12
2034-12-12
TBD
13
2034-12-13
TBD
14
2034-12-14
TBD
15
2034-12-15
TBD
16
2034-12-16
TBD
17
2034-12-17
TBD
18
2034-12-18
TBD
19
2034-12-19
TBD
20
2034-12-20
TBD
21
2034-12-21
TBD
22
2034-12-22
TBD
23
2034-12-23
TBD
24
2034-12-24
TBD
25
2034-12-25
TBD
26
2034-12-26
TBD
27
2034-12-27
TBD
28
2034-12-28
TBD
29
2034-12-29
TBD
30
2034-12-30
TBD
31
2034-12-31
TBD
1
2035-01-01
TBD
2
2035-01-02
TBD
3
2035-01-03
TBD
4
2035-01-04
TBD
5
2035-01-05
TBD
6
2035-01-06
TBD