Flatlands: A Novel of Multidimensionality by Edwin Abbott is a classic science fiction work that tells the story of the inhabitants of a flat world who have no idea of the existence of a third dimension. The main character, a square, talks about his adventures in an unusual world where there are different geometric shapes that interact and study the world around them. The author has successfully combined allegory with scientific concepts, which makes the book interesting for a wide range of readers interested in philosophy, mathematics and science fiction.