Content Analysis is a popular social science technique for the analysis of text data. While early examples trace back to the late 19th and early 20th century, the technique came of age during the Second World War through the efforts of Lasswell and others aimed at decoding enemy propaganda. This major work brings together the most significant methodological contributions and substantive applications ever published on Content Analysis. Students and scholars in sociology, political science, journalism and mass communication, and business and management will find in this major work a unique and comprehensive overview of the technique and its applications.