In The Science of Folklore, Alexander H. Krappe offers a comprehensive introduction to the study of folklore as a scholarly discipline, articulating its scope, methodology, and relevance in understanding human society. With erudition and clarity, Krappe outlines the principles for collecting, classifying, and interpreting folk narratives, songs, proverbs, rituals, and beliefs, arguing that folklore is not merely superstition or fantasy, but a repository of collective memory and cultural truth. Drawing from European, Asian, and Indigenous traditions, he examines the deep structures and symbolic patterns that underlie myth, fairy tale, legend, and oral history. Krappe delves into the origins and diffusion of folktales, their relation to language and environment, and the function they serve in social cohesion, moral instruction, and psychological development. He also discusses the role of the folklorist as both archivist and interpreter, tasked with preserving disappearing traditions while critically analyzing their form and meaning. Though his terminology may reflect the academic conventions of his era, Krappe's insights remain foundational, bridging the gap between literary studies, anthropology, and cultural history. The Science of Folklore remains an essential text for folklorists, ethnographers, educators, and anyone drawn to the rich and varied traditions that encode the values, fears, and aspirations of the human family.