The works of the Dutch graphic artist M. C. Escher is famous for its geometric patterns in replay, optical illusions, and the tall structures. Some of these create interesting math puzzles. The specific project named “Prentententoonstelling”, It is a distorted image that uses the phenomenon droste (an image that appears inside herself), and deciphered by the two Dutch mathematicians Bart de Smit and Hendrik Lenstra. This video shows us how he created the Escher's work.