Charles Dickens describes in Night Walks his time as an insomniac, when he decided to cure himself by walking through London in the small hours, & discovered homelessness, drunkenness & vice on the streets. This collection of essays shows Dickens as one of the greatest visionaries of the city in all its variety & cruelty. This is part of Penguin`s ” Great Ideas” range, which selects books that have a had a noticeable impact on the world around us.