>>1408863Depends where you are in your vocabulary. children's books and young adult series are good for starters. But if you have a higher vocabulary than something say in the Percy Jackson Series, perhaps read through some of the classics:
The Great Gatsby, To Kill A Mockingbird, Brave New World, Nineteen Eight-Four, East Of Eden, Dracula, The Lord of The Rings, The Hobbit, The Adventures of Huckleberry Finn, The Hatchet, Of Mice And Men, Dr. Jekyll And Mr. Hyde, Flowers For Algernon, Treasure Island, among many others. Those are just some you can start off with if it so pleases you. Or, just look up lists of classic literature and find some that you would enjoy.