All atlases are catalogued and filed like books, according to the Library of Congress classification scheme. The library holds most major world atlases and attempts to acquire most national atlases. Thematic and regional atlases are collected on a more selective basis.
Some atlases are also available in electronic format .
For Canadian studies, the National Atlas of Canada , 5th edition is one of the best cartographic sources. The three volume set , Historical Atlas of Canada is also a valuable resource for Canadian history. Both of these atlases are available in French or English.