This book tells the story of crime fiction published during the first half of the twentieth century. The diversity of this much-loved genre is breathtaking, and so much greater than many critics have suggested. To illustrate this, the leading expert on classic crime discusses one hundred books ranging from The Hound of the Baskervilles to Strangers on a Train which highlight the entertaining plots, the literary achievements, and the social significance of vintage crime fiction. This book serves as a companion to the acclaimed British Library Crime Classics series but it tells a very diverse story. It presents the development of crime fiction - from Sherlock Holmes to the end of the golden age - in an accessible, informative and engaging style.