In addition to the call number, you also need to note the holdings information to be able to find books in the library.  Holdings information is seen through searching the online catalog.

Holdings information just means the location where the book is shelved, along with the current status of the item.

You already know about two of the library's collections:

1. Main Stacks - location reads AACC MAIN STACKS
2. Reference Materials - location reads AACC REFERENCE AREA and is indicated before the call number by [REF]

The following examples are screenshots taken from searching the online library catalog:

1. Contaminant problems and management of living Chesapeake Bay resources/ edited by Shyamal K. Majumdar, [et al]. Easton, Pa.: Pennsylvania Academy of Science, c1987.

Location	Call Number	Material	Status
AACC MAIN STACKS	QH541.5.E8 C6 1987	BOOK	Checked Out Due: 3/24/2003

2. Working Americans, 1880-1999 / by Scott Derks. Lakeville, CT: Grey House Pub., 2000.

Location	Call Number	Material	Status
AACC REFERENCE AREA	[REF] HD8066 .D47 2000	REFERENCE	Non-Circulating

Other collections include:

3. Oversize Stacks - indicated before the call number by [OVERSIZE]
4. Reserves - indicated with a status of Reserve Room

3. Splendours of the East; temples, tombs, palaces and fortresses of Asia. Edited by Mortimer Wheeler, photographs by Ian Graham. London, New York, Spring Books [1970, c1965]

Location	Call Number	Material	Status
AACC MAIN STACKS	[OVERSIZE] NA1460 .W5 1970	BOOK	Not Checked Out

4. English Poetry of the romantic period.

Location	Call Number	Material	Status
AACC MAIN STACKS	YYENG111.	BOOK	Reserve Room

Take a good look at the status column in the examples from the library catalog shown above. The status will show one of the following and will indicate where, and even if, the item is available:

• checked out - due: MM/DD/YYYY

• not checked out

• assumed lost

• reserve room

• noncirculating