Lensed galaxies are distant galaxies whose light is bent and magnified by the gravitational effect of a massive object, such as a galaxy cluster, that lies between the observer and the distant galaxy. This gravitational lensing effect results in multiple distorted images of the same galaxy being observed, providing a unique opportunity to study the structure and properties of the distant galaxy in greater detail than would otherwise be possible. Lensed galaxies are important in cosmology as they can help constrain the distribution of dark matter and the expansion rate of the universe. Studying lensed galaxies also allows astronomers to investigate the formation and evolution of galaxies in the early universe.