The first-ever annotated edition of the beloved classic is beautifully illustrated and brilliantly brought to life for a new generation of readers. Published in 1884 by an English clergyman and headmaster, it is a fanciful tale of A. Square, a two-dimensional being visiting a three-dimensional world.

Originally published: Cambridge, Mass. : Perseus Pub., c2002.

pt. 1.1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. pt. 2. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. How I then tried to diffuse the theory of three dimensions by other means, and of the result -- The fourth dimension in mathematics. pt. 1. This world -- 1. Of the nature of Flatland -- 2. Of the climate and houses in Flatland -- 3. Concerning the inhabitants of Flatland -- 4. Concerning the women -- 5. Of our methods of recognizing one another -- 6. Of recognition by sight -- 7. Concerning irregular figures -- 8. Of the ancient practice of painting -- 9. Of the universal colour bill -- 10. Of the suppression of the chromatic sedition -- 11. Concerning our priests -- 12. Of the doctrine of our priests -- pt. 2. Other worlds -- 13. How I had a vision of Lineland -- 14. How I vainly tried to explain the nature of Flatland -- 15. Concerning a stranger from Spaceland -- 16. How the stranger vainly endeavoured to reveal to me in words the mysteries of Spaceland -- 17. How the sphere, having in vain tried works, resorted to deeds -- 18. How I came to Spaceland, and what I saw there -- 19. How, though the sphere shewed me other mysteries of Spaceland, I still desired more; and what came of it -- 20. How the sphere encouraged me in a vision -- 21. How I tried to teach the theory of three dimensions to my grandson, and with what success -- 22. How I then tried to diffuse the theory of three dimensions by other means, and of the result -- The fourth dimension in mathematics.