How does one-sided glass work to provide privacy while allowing visibility from one side?

One-sided glass, also known as one-way mirror glass, works by having a reflective coating on one side that is much brighter than the other side. This allows light to pass through from the brighter side, making it appear transparent, while the darker side reflects light, making it appear like a mirror. This creates the effect of privacy for the darker side while allowing visibility from the brighter side.