What’s the best entry point into the world?

Write a short paper (1,500 words) that answers the following questions:
What’s the name of the world?
Who created the world?
How would you describe the world? What makes it unique or compelling?
Who are the major characters through whom we experience the world? What makes them interesting or compelling?
What was its original source? In what work (and in which medium) did the world first appear?
What overall themes or concerns are reflected in this world?
What’s the best entry point into the world? If you could recommend one book, film, episode, game, or issue for a new fan to start with, which would it be and why?
How has the world been realized in different media? How successful were those works? Why do you think they succeeded (or failed)?
3 sources must be separate from the book and movie.