“Yuwipi: Vision and Experience in Oglala Ritual” by William K. Powers is a textbook published by the University of Nebraska Press in 1984. This trade paperback book, measuring 8 inches in length and 0.4 inches in height, delves into the social science subject area of general and ethnic studies, specifically focusing on Native American studies. With 114 pages, the book provides a detailed exploration of the Oglala ritual known as Yuwipi, offering insights into the cultural significance and spiritual practices of the Oglala people. Written in English, this textbook is a valuable resource for those interested in learning more about indigenous rituals and traditions.