the above piece is a lithograph by m.c. escher. how has escher used the concept of space effectively?

Brief Explanations:

Escher creates an optical illusion of space. He plays with perspective and inter - locking forms. The hands appear to be both creating and being created, blurring the boundaries between 2D and 3D space. He uses a continuous loop concept where the spatial relationship seems to have no beginning or end.

Answer:

Escher uses optical illusions, plays with perspective and inter - locking forms, blurs 2D and 3D boundaries, and creates a continuous loop of spatial relationships.