100 Mystery Classics of World Literature maps the extraordinary breadth of mystery writing, from Gothic menace and sensation fiction to detective puzzles, espionage, psychological suspense, adventure, and tales of the uncanny. Its hundred selections place celebrated investigations beside narratives of crime, disguise, inheritance, urban danger, and moral ambiguity. The volume's range reveals mystery not as a narrow formula but as a capacious literary mode, encompassing the locked-room problem, the thriller, the criminal confession, and the supernatural disturbance. Its contributors form an international and transhistorical constellation: Victorian novelists, Gothic innovators, French architects of detective fiction, American practitioners of noir-inflected suspense, and Russian, British, and continental masters of psychological and social observation. Figures associated with the detective story's formative conventions appear alongside writers better known for realism, romance, speculative fiction, or literary modernity. Together, these voices trace the genre's dialogue with industrial modernity, empire, class anxiety, changing urban life, and the unstable boundaries between rational explanation and terror. This anthology is especially valuable for readers seeking both pleasure and literary perspective. It offers a rare opportunity to compare narrative methods, national traditions, and evolving conceptions of evidence, secrecy, and justice within one generous volume. Students, scholars, and devoted mystery readers alike will find an illuminating invitation to explore how diverse styles transform uncertainty into compelling art.