The Katcina Altars in Hopi Worship is a non-fiction book written by Jesse Walter Fewkes. The book explores the religious practices and beliefs of the Hopi people, with a particular focus on their use of Katcina altars in their worship. The Hopi are a Native American tribe who live in the southwestern United States, primarily in the state of Arizona. The tribe has a rich and complex religious tradition, which centers around the worship of Katcinas, powerful spiritual beings who are believed to embody the forces of nature. In the book, Fewkes provides a detailed description of the Katcina altars used in Hopi worship, including their design, materials, and symbolism. He also explores the role of the altars in Hopi rituals, such as the Hopi New Year's ceremony and the Niman ceremony, which marks the end of the agricultural season. Fewkes's writing is both scholarly and accessible, providing readers with a fascinating glimpse into the religious practices and beliefs of the Hopi people. The book is richly illustrated with photographs and drawings, which help to bring the Katcina altars and their symbolism to life. "The Katcina Altars in Hopi Worship" is an important work of anthropology and religious studies, and remains a valuable resource for anyone interested in the spiritual traditions of Native American cultures.