Black Borneo by Charles C. Miller is a vivid travel narrative recounting the author’s explorations in Borneo, one of Southeast Asia’s largest and least-charted islands. Miller journeys into the dense jungles and mountainous interior, encountering indigenous communities such as the Dyak (Dayak) peoples and observing their customs, rituals, and daily life. The book details the physical challenges of navigating rivers, forests, and rugged terrain, while also describing the island’s diverse wildlife, including primates, exotic birds, and unique plant species. Combining adventure, ethnography, and personal reflection, Miller provides both thrilling accounts of survival and detailed cultural observations. Written in an engaging, accessible style, Black Borneo captures the allure and mystery of the island while reflecting the mid-20th-century perspective of a Western traveler encountering remote landscapes and societies. The work remains a classic example of travel literature blending exploration with anthropological curiosity.