A number of research groups around the world have begun to study how the brain acquires and processes language, but we still know comparatively little about it. Many such groups work on very specific, often narrow, problems. This approach is certainly necessary, but a broad perspective can be helpful, if not essential, too. This volume consists of an important collection of papers presented at the Seminar on Language, Evolution, and the Brain (SLEB), hosted by the International Institute for Advanced Studies in Kyoto, Japan, bringing together distinguished researchers with background in cognitive science, anthropology, linguistics, robotics, physics, etc. Major topics discussed here include: Creoles and pidgins, and their implications regarding language evolution. Quantitative analysis and modeling of various aspects of language evolution, including the evolution of lexical items and color terms, the emergence of linguistics categories, and the dynamics of language competition. The ev