Robert Ferguson is a name that could refer to several individuals across different fields. Without specific context, it's difficult to provide an accurate description. However, if you are referring to the British author and translator known for his work on Scandinavian history and culture, Robert Ferguson is best known for his non-fiction writings that delve into the history, society, and literature of Nordic countries. His works often explore topics such as the Vikings, Norwegian playwright Henrik Ibsen, and the history of the Lutheran Church in the Nordic countries. He has also translated a number of Norwegian and Danish plays and literary works into English. It's important to note that Ferguson's expertise in Scandinavian subjects has made him a respected author on topics pertaining to that region. If you are inquiring about a different Robert Ferguson, please provide additional context for a more precise description.