How did M.C. Escher make his work?

M.C. Escher created his intricate artworks through a combination of mathematical principles, geometric transformations, and a keen observation of nature. He often employed techniques such as tessellation, which involves fitting shapes together without gaps or overlaps, and explored perspective and infinity in his designs. Escher used lithography and woodcut printing techniques to produce his works, allowing for detailed, precise images that reflect his fascination with symmetry and spatial relationships. His innovative approach blended art with mathematics, making his pieces both visually stunning and intellectually engaging.