Books published about Native culture and history are shelved primarily in sections E 75 – E 99. The top level Library of Congress Subject Heading is Indians of North America. Below is a short summary of relevant topics with library call numbers. 
Cultural Topics
Art | E 98 .A7
Clothing | E 98 .C8
Dance | E 98 .D2
Dwellings / Architecture | E 98 .D9
Economics | E 98 .E2
Education | E 97
Folklore / Tales | E 98 .F6
Food | E 98 .F7
Games | E 98 .G2
Government Relations | E 91 – E 93
History | E 81 – E 90
Medicine / Healing | E 98 .M4
Religion | E 98 .R3
Women’s Studies | E 98 .W8
Specific Tribes
Cultural books pertaining to specific tribal groups are located in E 99. In general, the rest of the call number relates to the name of the tribe.
e.g. Navajo E 99 .N3
Some tribes may have been called by several different names, so the call number may be different than expected.
e.g. Blackfeet E 99 .S54 (refers to Siksika)
Idaho Regional Tribes
Coeur d'Alene | E 99 .S63
Kootenai (Kutenai) | E 99 .K85
Nez Perce | E 99 .N5
Shoshone | E 99 .S4
Northern Paiute | E 99 .P2