Einstein's theory suggests that gravitational waves, like light, can be influenced by gravitational fields from intervening matter. Recent research indicates that ground-based detectors may soon observe gravitational-wave lensing due to impending upgrades. The detection methods for gravitational-wave lensing differ significantly from light lensing, as gravitational waves are detected as waves from merging compact objects. This talk highlights recent results on gravitational-wave lensing, emphasizing an overview and wave optics phenomenology.