Materials that could be in any language that language learners have found helpful. For specific languages, please see pages such as "French TV Series", "American TV Series", etc. and page on Books with unabridged Audiobooks individual SuperChallenge Recommendations for specific languages.
Books[]
Harry Potter, Agatha Christie, Sherlock Holmes, The Moomins, The Little Prince, True Blood books by Charlaine Harris, The Hobbit, Jeff Kinney, Twilight, David Eddings ("soap opera fantasy"), D-Gray Man (manga), Bible stories, Hunger Games, Anne Frank's diary (simple language, powerful content), Christiane F (same)