Carl Bock’s The Head-Hunters of Borneo is a vivid travel narrative recounting his extensive journeys through Borneo and Sumatra in the late 19th century. Drawing on firsthand experience, Bock details his expedition up the Mahakkam River and down the Barito, documenting the geography, flora, and fauna of these remote regions. Central to the work are Bock’s encounters with indigenous peoples, including the Dayaks, whose customs, social structures, and practices?most notably headhunting?are described with both ethnographic interest and narrative flair. The book also chronicles Bock’s travels in Sumatra, offering insights into its cultures, landscapes, and colonial interactions. Richly illustrated with thirty colored plates, numerous black-and-white illustrations, and a folding map, the volume combines scholarly observation with the adventure of exploration. It remains a significant historical record of Southeast Asian ethnography and 19th-century European exploration.