In this introduction to the semiotic theory of one of the most innovative theorists of the twentieth century, the Russian literary scholar and semiotician Yuri Lotman, offers a new look at Lotman's profound legacy by conceptualizing his ideas in modern context and presenting them as a useful tool of cultural analysis. Semenenko demonstrates how Lotman's holistic theory, transcending the traditional boundaries of academic disciplines, offers a genuinely interdisciplinary approach to culture. This study covers a wide range of topics, from artificial intelligence to the role of an individual in history.