What was the first piece of art of eschers called?

The first known piece of art by M.C. Escher is titled "Regular Division of the Plane" (also known as "Regular Division of the Plane I"), created in 1936. This work features intricate patterns and tessellations, showcasing Escher's fascination with geometry and spatial relationships. It laid the groundwork for his later, more complex artworks that explored infinite patterns and optical illusions.