Book excerpt: The Routledge Companion to Crime Fiction is a comprehensive introduction to crime fiction and crime fiction scholarship today. Across 45 original chapters, specialists in the field offer innovative approaches to the classics of the genre as well as ground-breaking mappings of emerging themes and trends. The volume is divided into three parts. Part I, Approaches, rearticulates the key theoretical questions posed by the crime genre. Part II, Devices, examines the textual characteristics of crime fiction. Part III, Interfaces investigates the complex ways in which crime fiction engages with the defining issues of its context – from policing and forensic science through war, migration and narcotics to digital media and the environment. Rigorously argued and engagingly written, the volume is indispensable both to students and scholars of crime fiction.