Subject
- Civilization, Medieval1
- Death in art1
- Death in literature1
- Facebook (Firm)1
- Indians of North America -- Columbia River Basin1
- Internet -- Political aspects -- United States1
- Internet in political campaigns -- United States1
- Obama, Barack1
- Petroglyphs -- Oregon -- Dalles1
- Power (Social sciences) -- United States1
- Semiotics -- Political aspects -- United States1
- Signs and symbols -- Political aspects -- United States1