Answer:
The Big Sleep is a book by Raymond Chandler which was written in the time of the Great Depression and an alcohol prohibition law so contextual things such as a corrupt government, increased gang culture & violence and unemployment influence the book. It is a detective novel of the 'hard-boiled' genre which is a detective genre that Chandler created with this novel but the detective style novel would be influenced by writers such as Aurther Conan Doyle (Sherlock Holmes), Agatha Cristy and Edgar Allan poe (The Murders in The Rue Morgue).