This document is an introduction to a book on recognizing propaganda in the media. It discusses how propaganda has evolved with new digital technologies and social media, which allow widespread anonymous dissemination of information to target audiences. The introduction outlines three key aspects that help propaganda succeed: psychological profiling of groups, developing divisive content, and using bots to initially spread this content. It argues that people are not prepared for the new information environment and that journalism has become a conduit for propaganda by blurring the lines between facts and interpretation. The introduction presents the rest of the book as providing concrete standards for identifying propaganda in media based on violations of professional journalism standards.