👉 A stereogram is a representation of a three-dimensional shape using flat, rectangular prisms. The term "stereogram" comes from the Greek word "stere" which means "three", and "gram" which means "shape". It was introduced by French mathematician Jean-Baptiste Laberge in 1847. A stereogram is a three-dimensional representation of an object or shape, made up of rectangular prisms. These prisms are often used to represent the flat
