This book delves into the rich and diverse history of detective fiction, examining its evolution from its early roots in the 19th century to its modern-day manifestations in literature, film, and television. It explores the genre's foundational figures, such as Edgar Allan Poe, Arthur Conan Doyle, and Agatha Christie, whose works laid the groundwork for the detective archetype. The book traces the genre's development through various subgenres, including hard-boiled fiction, psychological crime narratives, and the cozy mystery, highlighting how each reflects its socio-political context. As detective fiction became increasingly global, it addressed contemporary issues such as cybercrime, surveillance, and the implications of emerging technologies in crime-solving. From the postmodern anti-detective stories that challenge the very concept of truth and resolution to the digital detective stories exploring new frontiers of investigation, the book provides an in-depth analysis of how detective fiction mirrors societal concerns while constantly adapting to new cultural and technological landscapes. Through the lens of prominent authors, characters, and trends, this work offers a comprehensive exploration of the detective genre's ongoing transformation and its profound influence on both popular culture and the global discourse on justice, morality, and identity.