Mary Douglas: Purity and Danger - Classic study, encompassing leviticus, anthropology of food, and much interesting things...

Renato Rosaldo - Death and the headhunters rage (article). Postmodernist Anthropology, tackling questions about how much we can really understand other cultures reactions to emotional situations..

Colin Turnbull - The forest people and the mountain people. Brilliant but flawed ethnographies covering the Mbuti people and the "Ik". Great for people who are new to the subject.