escher / "ascending and descending" 1960 / I LOVE the crossover between mathematics and art. Escher was very influenced by the mathematician Roger Penrose, which is seen here in his rendition of the 'Penrose steps'.
Douglas Hofstadter's Gödel, Escher, Bach was the book that first got me interested in FOM when I was in high school. Here, from MIT's OpenCourseWare, is a high school level class in FOM centered on this amazing book.
Gödel, Escher, Bach un Eterno y Grácil Bucle - ¿Puede un sistema comprenderse a sí mismo? Si esta pregunta se refiere a la mente humana, entonces nos encontramos ante una cuestión clave del pensamiento científico. Y de la filosofía. Y del arte.