Optical manipulation is the use of carefully controlled light beams to exert forces on and precisely control the position, orientation, or deformation of microscopic and nanoscale objects. This interdisciplinary research field investigates the transfer of momentum and energy from light to matter, providing non-contact techniques such as optical tweezers for trapping and manipulating particles, cells, or molecules. Its significance lies in enabling fundamental studies and diverse applications across physics, biology, and materials science.