This episode covers the beginnings of Viking activity in the British isles and the creation of the Danelaw through to its collapse and the creation of England. It covers the Danes, the Norse and their respective activities which brought great change to Britain. Recommended Reading: James Campbell et al. - The Anglo-Saxons (1991) - It's coverage of the Danelaw is great (if slightly dated) but remember that it won't give much context about the wider Viking world.