Louis E. Jackson's A vocabulary of criminal slang: with some examples of common usages is a compact yet revealing lexical study of the language of the underworld, cataloguing the specialized expressions, idioms, and verbal habits associated with criminal subcultures. Part glossary and part social document, the book belongs to the long tradition of criminological and philological inquiry into cant, argot, and nonstandard speech. Its method is practical and documentary: definitions are paired with examples of usage, allowing readers to see how slang functions not merely as ornament but as a marker of identity, secrecy, and social organization. Jackson writes from an informed engagement with the world he describes, and the book reflects the early twentieth-century interest in criminal anthropology, police work, and the scientific classification of deviance. His attention to vocabulary suggests a belief that language offers privileged access to hidden communities and their codes. In this sense, the work emerges at the intersection of lexicography, criminology, and social observation. This volume is especially recommended to readers interested in the history of slang, criminal justice, sociolinguistics, and the cultural archaeology of marginalized groups. Beyond its immediate reference value, it preserves a linguistic record of voices often excluded from formal literature and official history.