In Ceremonies of the Pomo Indians, anthropologist S. A. Barrett presents one of the most detailed ethnographic records of Native Californian religious and ceremonial life ever compiled. Drawing from extensive fieldwork with the Pomo people in the early 20th century, Barrett documents a wide range of sacred practices—including seasonal rituals, puberty ceremonies, healing rites, mourning customs, and the intricate "Ghost Dance" cycle. Each ceremony is described with precision, capturing not only its structure and symbolism but also the accompanying songs, dances, regalia, and cosmological meanings. The Pomo's spiritual world is revealed as rich, layered, and deeply interwoven with the natural environment, social identity, and ancestral reverence. Barrett's work goes beyond surface description to interpret how these rituals sustain communal bonds, transmit cultural knowledge, and maintain balance between the physical and spiritual realms. While the tone reflects the anthropological conventions of his era, the content remains invaluable for contemporary scholars, Native communities, and those seeking to understand the diversity and depth of Indigenous American belief systems. Ceremonies of the Pomo Indians stands as a foundational text in Californian ethnography and an enduring testament to the ceremonial life of a remarkable people.