Flatland: A Romance of Many Dimensions by Edwin A. Abbott

This novel is a satirical critique of Victorian society told through a two-dimensional world known as Flatland, inhabited by geometric figures. The protagonist, a square, guides the reader through his society, explaining its rigid class structure, before being visited by a three-dimensional sphere. The sphere introduces him to the concept of the third dimension, challenging the Square's understanding of his own world. The story then explores themes of perception, dimensions, and the limitations of understanding and knowledge.

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