Book excerpt: Television and film, not libraries or scholarship, have made Charles Dickens the most important unread novelist in English. It is not merely that millions of people feel comfortable deploying the word 'Dickensian' to describe their own and others' lives, but that many more people who have never read Dickens know what Dickensian means. They know about Dickens because they have access to over a century of adaptations for the big and small screen. Dickens on Screen, includ ing an exhaustive filmography, is an invaluable resource for students and scholars alike.