By now, especially if you have watched the vid lecture for this week, you will be aware of the two main categories of the monstrous: the internal and external.
The internal category is largely a product of Romanticism, and Shelley in particular in Frankenstein. Tolkien holds on to the traditional, preternatural view.
What other differences between internal/external or traditional/modern monsters can you think of?
Why has this shift occurred in literature?