A chalk talk is an illustrated performance in which the speaker draws pictures to emphasize lecture points and create a memorable and entertaining experience for listeners. Chalk talks differ from other types of illustrated talks in their use of real-time illustration rather than static images. They achieved great popularity during the late nineteenth and early twentieth centuries, appearing in vaudeville shows, Chautauqua assemblies, religious rallies, and smaller venues. Since their inception, chalk talks have been both a popular form of entertainment and a pedagogical tool.